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Old 12-06-2017   #81
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I am using a Lowepro Toploader Zoom 50 for the Quattro with the 17-50 2.8. Camera fits the bag well and it is about the smallest bag that it would fit in. Front pocket easily holds a couple of filters and spare batteries. Not sure what I will do if I bring another lens along. Maybe attach a lens case to the side of the bag. Only thing to get used to is in removing the camera from the bag it is a little too easy to accidentally open the SD card door.

For the LCD screen http://www.protectionfilms24.com/ has screen protectors sized for the Quattros double LCD display. I just received one of the Airglass protectors but have not installed it yet. I use them on other cameras and they work well.

M42 lenses will work on the Quattro but you have to set AF-S to release priority to get the shutter to fire. I also realized that for macro my Nikon mount Tamron 90mm f2.8 lens will work fine. There are $10 adapters to go from Nikon to Sigma mount. I do not have the adapter yet but it will act like a small extension tube and will prevent infinity focus but that will not matter for macro shooting.

For a very wide angle B&H had a used 10-20 that I have on the way. Pretty sure that is going to vignetting on the APS-H sensor (in 3:2) but I think it will be fine for 21:9.

I'm also fairly convinced you could get a Pentax mount Rokinon/Samyang 14mm (Pentax mechanical mount is basically same as the Sigma) and then use the focus adjust procedure on the 14mm (see youtube videos) to correct for the difference in flange focal length. Not sure if the aperture level on the Pentax mount Rokinon would need to be removed to prevent hitting the dust screen though. The other option is swapping out the mount on a Canon EF version for a DIY Sigma mount. The flange length is the same between Canon EF and Sigma SA. I found one guy that did that successfully.

Shawn
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Old 12-06-2017   #82
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Thanks for those tips Shawn. Where did you see Nikon F to Sigma SA adapters? I have an m42 adapter on the way, will give it a try. For the LCD screen I cut two protectors and butted them together at the divider seam between the two screens. A bit crude looking, but it works fine in use.

A Pentax K-mount will fit this camera, but with a different back-focus flange distance? I have an m42 to K somewhere, will look for it to see if it mounts.
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Old 12-06-2017   #83
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Sorry, I typed that wrong. I went with a Nikon F to Pentax PK adapter as the PK lens mount is supposed to be almost the same as the Sigma but with a different flange distance.

https://www.ebay.com/itm/Camera-Macr...72.m2749.l2649

Assuming the adapter mounts on the Sigma my Nikon macro lens would be usable for macro but it won't focus to infinity due to the depth of that adapter.

K mount lenses are supposed to be able to mount to the Sigma and actually be usable but they won't close focus as much due to putting a longer flange distance lens on a shorter distance body. Pentax is 1.46mm longer. Depending upon the lens the aperture lever could hit the dust protector/hot mirror in the Sigma. The dust protector can be removed pretty easily though for testing.

Sigma 10-20 f3.5 arrived just as I was losing the light. At 10mm it does have dark corners (3:2) with DC crop off but I think it is less than the 17-50. By 12mm the corners are no longer dark and it stays that way through 20mm. Not enough light to really say anything about IQ yet.

Shawn
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Old 12-06-2017   #84
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I'd be curious to see results from the 10-20mm, when you have some. I'll try my Pentax K, and be careful to watch the sensor cover. And thanks for the link.
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Old 12-06-2017   #85
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If anyone is interested, I just received the SF quattro H camera and the 30mm f1.4 lens. Even though the lens is specified for the aps-c camera, it does not vignette on the larger H sensor (cropped mode turned off). This is a much cheaper method for getting the “Art Lens” image quality and f1.4 speed of the more expensive 35/1.4.
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Old 12-07-2017   #86
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Wow Jamie, if I had known that the 30mm would work well with the "H," I probably would have sprung for the larger sensor.

But so far, I am happy with the APS-c. The m42 to SA adapter arrived today, doesn't play well with my Pentax 50mm f1.4, it binds the aperture ring. But it does work really well with an old Helios 44-2, 58mm f2. This gives a nice portrait length on APS-c of 87mm.

Having trouble connecting to my usual FTP hosting today, so I posted a sample here:

https://lhlphotography.myportfolio.com/Quattro
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Old 12-09-2017   #87
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I will post some 10-20 shots this weekend. Wide open at 10mm (DC crop off) the edges are blurry (with dark corners) but they improve when stopped down. A tiny amount of zoom (camera is still reporting focal length as 10mm) gets ride of the dark corners and they are gone the rest of the time.

A couple of times it seems like AF focuses past infinity at 10mm but I have not seen that when zoomed in somewhat.

Good to know the 30mm 1.4 works on the "H."

Adorama has the Lowepro Toploader 55 for $25 shipped. Mine just arrived and it will just fit one lens horizontal at the bottom, the divider and then the camera with mounted lens and L plate above it. It fits with either the 10-20 mounted or the 17-50 2.8. Little tighter fit with the 17-50 mounted as it is slightly longer with a filter on it. Lens hood on the 10-20 stored lens makes it not fit as it adds just enough vertical height to the cameras position above it. Front pouch holds the hoods, filters and batteries easily.

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Old 12-09-2017   #88
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Looking forward to seeing some samples from both your 17-50mm and 10-20mm.

I found an usused Domke F-2 “original” bag in a cabinet, big, but the camera will sit sideways with the 30mm lens attached, and plenty of room for a couple of lenses, batteries, filters.

Anyone tried pulling out the IR blocking filter for B&W? I have an #87 filter around somewhere, hoping to find it and try some IR if the skies clear off.
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Old 12-09-2017   #89
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I did pull the filter out to try IR. Make sure you use tweezers to grab the tab at the top of the filter. Looking into the camera the right side of the tab moves the most to hold the filter in place and then lift that side up and slide it out of the left side.

It was overcast when I tried IR so the results were not great (very little contrast). 850nm was very flat and a 700nm filter was a bit better. From other samples I have seen it looks like the camera is capable if there is more direct sunlight. I will try it again when the light is better. Camera was able to focus but hunted a bit more. Trying to set a custom WB in camera on green foliage failed. More light might have improved that.

Shawn
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Old 12-09-2017   #90
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Quote:
Originally Posted by Larry H-L View Post
Wow Jamie, if I had known that the 30mm would work well with the "H," I probably would have sprung for the larger sensor.

But so far, I am happy with the APS-c. The m42 to SA adapter arrived today, doesn't play well with my Pentax 50mm f1.4, it binds the aperture ring. But it does work really well with an old Helios 44-2, 58mm f2. This gives a nice portrait length on APS-c of 87mm.

Having trouble connecting to my usual FTP hosting today, so I posted a sample here:

https://lhlphotography.myportfolio.com/Quattro
Larry, the photo of the gourds is gorgeous! I'm super interested in how m42 lenses play with the Quattros, so if you try any other m42 lenses, let us know what you think of them. Thanks! (I've ordered the m42 to SA adapter today.)
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Old 12-10-2017   #91
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Boring hand held test shots of the 10-20mm f3.5 on the Quattro H with DC crop off. Lens hood was on. OOC JPEGs

https://flic.kr/s/aHsm7udirq

You can see at 10mm there is vignetting on the APS-H sensor but it is gone at 12mm. It is actually gone with just the slightest amount of zoom. At 10mm corners are rough wide open but improve stopped down. The older, slower version of this lens is supposed to vignette more (77mm front filter vs 82mm) so it might not work as well on the Quattro H.

Couple of other things I found...

It is annoying that Flickr does not know how to read the aperture properly from the Sigma JPEGs.

The zoom ring on the 10-20mm is opposite the zoom ring on the 17-50. That is going to be confusing.

RPP64 can open X3F files from the Quattro. Have not spent any time there to see how well it handles them though.

Shawn
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Old 12-11-2017   #92
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Jamie, thanks for the compliment on the gourd photo, and Shawn, thanks for the 10-20 samples, greatly appreciated.

I tried a few more m42 lenses, all Pentax. The 35mm f3.5 had some color smearing in the corners, I probably won’t use it again. The 50mm f1.4 SMC seems OK, I got it to work on the adapter, I think I overtightened it on the first attempt.

Went out on a snowy walk yesterday and took along a Pentax 135mm f3.5 SMC, it seemed to work great. Although I usually shoot B&W, I did try some in color, and the Pentax does render color a bit differently than the native 30mm f1.4 Sigma. Auto white balance seemed to help. Longer lenses seem to be fine.

Here are some shots from 135mm, leaves in B&W and the color, and another still-life shot:







The 30mm f1.4 is very good, happy with it. A few samples here:







The camera handles well, and battery life is MUCH better than the DP Merrills. I was out in the cold for about 2 hours one battery did the job.

I do think the Merrill cameras have a more organic “film-like look,” but I think I can get close to that with more practice on the Quattro files. Some have said the DNGs don’t look as good as X3F files run through SPP, but I don’t see any difference. And the out-of-camera jpegs are really very good. The Quattro files do seem smoother, a bit more plastic looking.

A few other quirks…

Strangely, aperture priority metering changes when switching from color to B&W mode on the camera. The B&W files seem to need + 0.7 to match. Anyone else notice this?

I find it easier to use focus magnification with peaking turned off.

The secondary LCD panel is handy, but I wish it contained “WB” rather than metering pattern.

I'm still deciding what wider lens to get. It appears on their website that Sigma might swap out mounts on the new 16mm f1.4, for a fee. I'll check with a local dealer to see what that would cost.
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Old 12-12-2017   #93
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Larry, thanks for all this excellent information. I've just ordered an Industar 50/3.5 m42 lens. As soon as I get it, and the adapter, I'll post some photos here.

Quote:
Originally Posted by Larry H-L View Post
Jamie, thanks for the compliment on the gourd photo, and Shawn, thanks for the 10-20 samples, greatly appreciated.

I tried a few more m42 lenses, all Pentax. The 35mm f3.5 had some color smearing in the corners, I probably won’t use it again. The 50mm f1.4 SMC seems OK, I got it to work on the adapter, I think I overtightened it on the first attempt.

Went out on a snowy walk yesterday and took along a Pentax 135mm f3.5 SMC, it seemed to work great. Although I usually shoot B&W, I did try some in color, and the Pentax does render color a bit differently than the native 30mm f1.4 Sigma. Auto white balance seemed to help. Longer lenses seem to be fine.

The 30mm f1.4 is very good, happy with it.

The camera handles well, and battery life is MUCH better than the DP Merrills. I was out in the cold for about 2 hours one battery did the job.

I do think the Merrill cameras have a more organic “film-like look,” but I think I can get close to that with more practice on the Quattro files. Some have said the DNGs don’t look as good as X3F files run through SPP, but I don’t see any difference. And the out-of-camera jpegs are really very good. The Quattro files do seem smoother, a bit more plastic looking.

A few other quirks…

Strangely, aperture priority metering changes when switching from color to B&W mode on the camera. The B&W files seem to need + 0.7 to match. Anyone else notice this?

I find it easier to use focus magnification with peaking turned off.

The secondary LCD panel is handy, but I wish it contained “WB” rather than metering pattern.

I'm still deciding what wider lens to get. It appears on their website that Sigma might swap out mounts on the new 16mm f1.4, for a fee. I'll check with a local dealer to see what that would cost.
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Old 12-12-2017   #94
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Too cold and windy today, so some old tools from the garage, SD Quattro, 58mm f2 Helios 44-2.

Looking forward to seeing some photos Jamie.

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Old 12-12-2017   #95
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Old 12-12-2017   #96
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Mike, you really nailed focus on the second photo, very sharp.
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Old 12-13-2017   #97
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Quote:
Originally Posted by Larry H-L View Post
Mike, you really nailed focus on the second photo, very sharp.
Thank's Larry, I was pleased with that shot too.

A few more taken with the Quattro H and the 35mm f1.4 "Art" lens.







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Old 12-13-2017   #98
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The Nikon to Pentax K adapter arrived. It does mount on the Sigma but has a *slight* amount of play but is very usable. I tried a 85 1.4D, 105 2.5 and the Tamron 90mm 2.8 1:1 macro on it. They all focused out to about 3-4' and couldn't go any further which makes sense due to the depth of the adapter. It is about 13mm so with the difference in flange length it is acting like about an 11mm extension ring.

The Tamron Macro lens seems to work well on the Sigma.

Just a quick test under a lamp. 34 image stitch from JPEG on a manual focus rail at basically minimum focus distance.



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Old 12-15-2017   #99
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Old 12-16-2017   #100
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Sigma 10-20mm at 10mm f5.6


Sigma 10-20mm at 10mm f5.6


Sigma 10-20mm at 11mm f10


Sigma 10-20 at 13mm f9


Sigma 50mm 1.4 EX at 5.6


Sigma 50mm 1.4EX at 1.4


Sigma 50mm f1.4EX at f4


DC Crop off on the 10-20 shots.

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Old 12-16-2017   #101
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It looks like you are having fun with the 10-20mm, it certainly is w-i-d-e.
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Old 12-17-2017   #102
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Old 12-18-2017   #103
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Raining again here, so back to the toolbox:



Sigma SD Quattro, Helios 44-2 58mm f2 @f8, continuous light paint with small LED flashlight, about 15 seconds.

It's either an adjustable pipe wrench, or a lizard in a fully-belly laugh...
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Old 12-19-2017   #104
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Got outside today for a short walk. Pulled out the infrared blocking filter, it came out easily with tweezers by grasping the handling tab at top, after pushing the release on the right side of the filter.











I put a # 87 infrared filter on the lens. Not much blue sky today, but I did get one break in the clouds, the sky appears quite dark.

The other shots are from bright overcast. Shooting toward the sun did cause some strange fogging, probably some sort of flare or reflection from the sensor.

All in all, very happy with the IR capabilities of the camera. I'll try again on a better blue-sky day.

Larry
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Old 12-26-2017   #105
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Some new firmware became available for the SD Quattros in the past few days, 1.0.8 for the APS-c and 1.0.4 for the "H" cameras.

https://www.sigma-global.com/en/down...eras/firmware/

Select your camera model, it defaults to the regular APS-c SD Quattro.

Supposedly improves the viewfinder and LCD images.

There is also an option to improve the resolution of the jpegs, however, you MUST go into the linked PDF instruction sheet to get to that download, it is buried and separate. You want the "A" version for the higher rez jpegs.

I put both the jpeg improvement "A" download and 1.0.8 upgrade download on the SD card at the same time and all seemed to go smoothly. It did take longer to update than the last firmware update for me.
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Old 12-27-2017   #106
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Thanks for the heads-up, Larry. I'll definitely check these out when I return home in a few days. I'm out in the Nevada desert with the sd quattro h.

Quote:
Originally Posted by Larry H-L View Post
Some new firmware became available for the SD Quattros in the past few days, 1.0.8 for the APS-c and 1.0.4 for the "H" cameras.

https://www.sigma-global.com/en/down...eras/firmware/

Select your camera model, it defaults to the regular APS-c SD Quattro.

Supposedly improves the viewfinder and LCD images.

There is also an option to improve the resolution of the jpegs, however, you MUST go into the linked PDF instruction sheet to get to that download, it is buried and separate. You want the "A" version for the higher rez jpegs.

I put both the jpeg improvement "A" download and 1.0.8 upgrade download on the SD card at the same time and all seemed to go smoothly. It did take longer to update than the last firmware update for me.
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Old 12-30-2017   #107
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Too cold for much shooting outside so more playing with focus stacking...






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Old 01-04-2018   #108
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Old 01-05-2018   #109
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50mm EX DG 1.4


17-50mm f2.8







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Old 01-05-2018   #110
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^Nice work, Shawn, great interaction between the boy, the dog, and of course... the snow!

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Old 01-10-2018   #111
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Shawn, your focus stacking looks good. I'm a Contax IIa fan too.

I found a really nice used 17-50mm and it arrived today. I hope to try it out in the morning before rain moves in, finally above freezing for a couple of days.

Jamie, any desert photos to show?

Mike, you are getting some Fuji Velvia colors lately, I especially like the woman waving in the brown jacket.
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Old 01-10-2018   #112
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Quote:
Originally Posted by Larry H-L View Post
Shawn, your focus stacking looks good. I'm a Contax IIa fan too.

I found a really nice used 17-50mm and it arrived today. I hope to try it out in the morning before rain moves in, finally above freezing for a couple of days.
I think you will like the 17-50, it is a good lens and the OS works very well on it. There are some very good deals out there on used SA mount lenses.

Shawn
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Old 01-11-2018   #113
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Rained again, so I tried a few shots with the Sigma 17-50mm zoom inside, up close. The lens seems fine and gives a useful 27-75mm range on the APS-c Quattro. Focus is a bit jittery in low light, but it works. Shot here at 45mm, or about 67mm equivalent.



A pair of old screwdrivers lit with an 18'' LED softlight and honeycomb grid.

Snow coming on Saturday, I will try to get outside and give the lens a try on the 17mm end.
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Old 01-20-2018   #114
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SDQH 10-20 at 10mm
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Old 01-20-2018   #115
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Thanks for posting this, Shawn. This is a "DC" lens, correct? I have the SDQH as well, and I'm loving how many of the less expensive DC lenses work on the H model without vignetting. I have the DC 30/1.4 which doesn't vignette, and the DC 18-35 which doesn't vignette from 19mm onward.
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Old 01-20-2018   #116
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Yes, the 10-20 is a DC lens. With DC Crop OFF it does vignette at 10mm (though not in 21:9 like above) but from 11mm and up it covers the sensor. Corners are rough wide open but they do improve stopped down. This is the later f3.5 version, I think the earlier version vignettes more.

I have the 30 1.4 ART and it covers the sensor. The 17-50 2.8 does vignette over much of the range but works fine in 21:9.

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Vignette test 18-35/1.8 on SDQH
Old 02-01-2018   #117
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Vignette test 18-35/1.8 on SDQH

Here are a couple of photos demonstrating how little vignetting occurs on H sensor using the DC 18-35mm f1.8 lens:

This one shows slight vignetting in the upper left and lower left:




This one shows roughly zero vignetting in the right side corners:



Lens hood was not used for these photos.
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Old 02-01-2018   #118
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The vignette looks very slight, were these shot at f1.8? I've heard that lens is extremely sharp, can you see any difference?
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Old 02-02-2018   #119
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Quote:
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The vignette looks very slight, were these shot at f1.8? I've heard that lens is extremely sharp, can you see any difference?
Larry, those images were made at f3.5. So today I made some 'white wall' images at different f-stops and focal lengths with the 18-35mm lens:

18mm at f1.8



18mm at f2.8



18mm at f5.6



19mm at f1.8



20mm at f1.8



These all seem to be about what any fast wide-angle lens would produce, so I'd say the 18-35mm lens is very useable over the entire focal length range on the SDQH body.

As far as sharpness, I'm not the best judge of that as I think nearly all modern lenses are better than anything I had in 'the old days'. :-) But for something more definitive, check out photozone's assessment. They gave it 4 and half stars on a Canon APS-C body.
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Old 02-02-2018   #120
helenhill
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Ok....
Since I always Loved the Merrills
I am thinkng of getting the H... another ‘H’ for Miss HH... pun intended

Since I am too lazy to research , can anyone give Me a heads up on what PRIME lenses are Compatible... which adapters

Thanks Much !

Best Wishes~ H
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