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Archive 2018 · MS Optics Sonnetar 73mm f1.5

  
 
sebboh
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p.2 #1 · MS Optics Sonnetar 73mm f1.5


nehemiahphoto wrote:
I love mine. And it's soooo small.


got a picture of it on camera or compared to the 75 lux?




Nov 19, 2018 at 11:31 PM
serhan_
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p.2 #2 · MS Optics Sonnetar 73mm f1.5


http://www.pbase.com/sc_20170/image/168423177/original.jpg


sebboh wrote:
got a picture of it on camera or compared to the 75 lux?






Nov 19, 2018 at 11:38 PM
nehemiahphoto
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p.2 #3 · MS Optics Sonnetar 73mm f1.5


sebboh wrote:
got a picture of it on camera or compared to the 75 lux?



It's 1/3 the weight, about 60% the height and much less bulky than the lux.

It's nearly identical in height and bulk to the cv 35 1.7, but a little lighter. Both are 46 thread.












Nov 20, 2018 at 12:06 AM
fibonacci
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p.2 #4 · MS Optics Sonnetar 73mm f1.5


nehemiahphoto wrote:
It's nearly identical in height and bulk to the cv 35 1.7, but a little lighter. Both are 46 thread.


Can you confirm the filter size? The JCH page says "Filter and hood thread size M49".



Nov 24, 2018 at 10:42 AM
nehemiahphoto
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p.2 #5 · MS Optics Sonnetar 73mm f1.5


fibonacci wrote:
Can you confirm the filter size? The JCH page says "Filter and hood thread size M49".


It’s 46. Double checked. This lens inner barrel isn’t threaded though, so no UV filters, but a 46 cap is what you’ll want.

Edit as of 3/29/25:

This takes a 49mm reversed filter. Not a 46mm filter.

Edited on Mar 29, 2025 at 10:04 PM · View previous versions



Nov 25, 2018 at 03:06 AM
inglis
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p.2 #6 · MS Optics Sonnetar 73mm f1.5


What is a 46 cap?

Is anyone going to use one on film?

Japanexposures.com has them for 125,900yen, or around 1106.31$



Nov 27, 2018 at 10:03 PM
nehemiahphoto
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p.2 #7 · MS Optics Sonnetar 73mm f1.5


inglis wrote:
What is a 46 cap?

Is anyone going to use one on film?

Japanexposures.com has them for 125,900yen, or around 1106.31$


46mm cap. It uses same cap as the cv 35 1.7 and cv 28 f2. All use 46mm filters/caps.

For those curious, the lens has an adjustable coma setting. You twist the rear mount. 3 is "good" as the documentation says, but you can go down to 1. This is a portrait at 1--the softest. I have since turned it back to 3. I liked 1, but subjects at mid distance get wonky. And I found it extremely difficult to focus on my a7rii, even with magnification. It's noticeably better corrected at 3, the default. All photos I posted before this post are with the setting at 3.







73 @ 1.5 @1 comma




Nov 28, 2018 at 03:18 PM
sfogg
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p.2 #8 · MS Optics Sonnetar 73mm f1.5


Looks like a great character lens. Anyone try one on a Leica yet? How is the focus wide open?

Shawn



Nov 29, 2018 at 06:31 PM
nehemiahphoto
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p.2 #9 · MS Optics Sonnetar 73mm f1.5


Just a few more, tempted to try the 35 1.4 Apoqualia now...





73 @ 1.5 @1 comma







73 @ 1.5 @1 comma







73 @ 1.5 @3 comma







73 @ 1.5 @3 comma




Nov 29, 2018 at 08:58 PM
inglis
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p.2 #10 · MS Optics Sonnetar 73mm f1.5


Thanks so much for the images!!

"Just a few more, tempted to try the 35 1.4 Apoqualia now..."

I too wonder about a possible holy trinity of Sonnetars, with one added at the wide end.

But since the 50 and 73mm Sonnetars are Sonnar lenses, and apparently there are no wide-angle Sonnar lenses as of yet for rangefinders https://www.rangefinderforum.com/forums/showthread.php?t=69170

I assume that MS Optics will not come out with a wide-angle Sonnetar.

If that is the case, then a 35 1.4 Apoqualia might be a great addition to have with the Sonnetars.



Dec 01, 2018 at 09:36 AM
hiepphotog
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p.2 #11 · MS Optics Sonnetar 73mm f1.5


Just placed my order. I have been debating between getting this lens or pay a little more for the Macro Elmar. From the MTF, this lens seems to be perfect for landscape from f/4 on. Can any of the current owner confirm this? I think the 50/1.1 is not as well rounded as this 73.

@inglis: if you're into lensbaby/lomo style of lens, their pancake Apoqualia/Perar series would be perfect. Particularly, the Apoqualia series has strong, wavy field curvature stopping down, even on a Leica digital body. They're mainly for street which is not very demanding for flat field sharpness.



Dec 04, 2018 at 12:12 AM
sfogg
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p.2 #12 · MS Optics Sonnetar 73mm f1.5


inglis wrote:
But since the 50 and 73mm Sonnetars are Sonnar lenses, and apparently there are no wide-angle Sonnar lenses as of yet for rangefinders https://www.rangefinderforum.com/forums/showthread.php?t=69170

I assume that MS Optics will not come out with a wide-angle Sonnetar.

If that is the case, then a 35 1.4 Apoqualia might be a great addition to have with the Sonnetars.


MS Optics can covert the lens in a Nikon L35AF to RF mount. It is a 35mm sonnar design lens.

Shawn



Dec 04, 2018 at 04:06 PM
sfogg
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p.2 #13 · MS Optics Sonnetar 73mm f1.5


hiepphotog wrote:
Just placed my order. I have been debating between getting this lens or pay a little more for the Macro Elmar. From the MTF, this lens seems to be perfect for landscape from f/4 on. Can any of the current owner confirm this? I think the 50/1.1 is not as well rounded as this 73.



Nice, I ordered one last week as well. Waiting for it to ship, looks like it will be a very fun lens.

Shawn




Dec 04, 2018 at 04:13 PM
sebboh
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p.2 #14 · MS Optics Sonnetar 73mm f1.5


sfogg wrote:
MS Optics can covert the lens in a Nikon L35AF to RF mount. It is a 35mm sonnar design lens.

Shawn


how is that 35/2.8 sonnar?



Dec 04, 2018 at 04:37 PM
sfogg
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p.2 #15 · MS Optics Sonnetar 73mm f1.5


I didn't have MS Optics do one for me, just read that they can.

https://www.35mmc.com/05/03/2016/ms-optical-converted-nikon-l35-35mm-f2-8-sonnar/

I put the optics in an Industar 69 body, but they aren't deep enough in so it has odd vignetting on APS-C. Vignettes more as the lens is stopped down. Someday I'll redo it.

Few other L35AF lens hacks at:

https://www.rangefinderforum.com/forums/showthread.php?t=159302&highlight=l35af

The lens I'd really like to convert is the 38mm Sonnar from the Contax T. MS Optics doesn't do that one though. I have a couple of the lenses.

Shawn



Dec 04, 2018 at 06:09 PM
nehemiahphoto
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p.2 #16 · MS Optics Sonnetar 73mm f1.5


hiepphotog wrote:
Just placed my order. I have been debating between getting this lens or pay a little more for the Macro Elmar. From the MTF, this lens seems to be perfect for landscape from f/4 on. Can any of the current owner confirm this? I think the 50/1.1 is not as well rounded as this 73.

@inglis@: if you're into lensbaby/lomo style of lens, their pancake Apoqualia/Perar series would be perfect. Particularly, the Apoqualia series has strong, wavy field curvature stopping down, even on a Leica digital body. They're mainly for street which is not very demanding for flat field sharpness.


Looks sunny here tomorrow--I'll try to get outside and do some infinite shots and post crops.



Dec 04, 2018 at 08:57 PM
rscheffler
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p.2 #17 · MS Optics Sonnetar 73mm f1.5


inglis wrote:
Thanks so much for the images!!

"Just a few more, tempted to try the 35 1.4 Apoqualia now..."

I too wonder about a possible holy trinity of Sonnetars, with one added at the wide end.

But since the 50 and 73mm Sonnetars are Sonnar lenses, and apparently there are no wide-angle Sonnar lenses as of yet for rangefinders https://www.rangefinderforum.com/forums/showthread.php?t=69170

I assume that MS Optics will not come out with a wide-angle Sonnetar.

If that is the case, then a 35 1.4 Apoqualia might be a great addition to have with the Sonnetars.


7artisans states their 35/2 lens is a Sonnar based design. Not sure how true to Sonnar rendering it is just yet, as I received one only a day ago and have not had the chance to do much with other than check rangefinder accuracy. Just playing a bit more with it and background rendering of OOF specular highlights has a Sonnar-like look and there is double-edging to higher contrast OOF transitions...

http://11204951.s21i.faiusr.com/2/ABUIABACGAAg9Lna3gUo6KrBrwMwhAM4nwI.jpg

As an aside, quality of construction at first try is quite good and it's very reasonably priced. This actually surprised me somewhat. I'd say it's comparable build quality to anything from Voigtlander or Zeiss ZM. The ability to tweak the RF cam to fine-tune camera-specific focus accuracy is a really nice touch. Both this and their 50/1.1 should have focus shift. This fine-tuning would also allow one to choose the desired working aperture with perfect RF focus. IIRC, Zeiss used to set correct RF focus at f/2.8 for the 50/1.5 so that wide open there would be a touch of front focus and f/4 would be slightly back focused but likely almost within DOF. My understanding is the ZM50/1.5 now ships with RF calibration at wide open.



Dec 04, 2018 at 09:04 PM
sebboh
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p.2 #18 · MS Optics Sonnetar 73mm f1.5


sfogg wrote:
I didn't have MS Optics do one for me, just read that they can.

https://www.35mmc.com/05/03/2016/ms-optical-converted-nikon-l35-35mm-f2-8-sonnar/

I put the optics in an Industar 69 body, but they aren't deep enough in so it has odd vignetting on APS-C. Vignettes more as the lens is stopped down. Someday I'll redo it.

Few other L35AF lens hacks at:

https://www.rangefinderforum.com/forums/showthread.php?t=159302&highlight=l35af

The lens I'd really like to convert is the 38mm Sonnar from the Contax T. MS Optics doesn't do that one though. I have a couple of the lenses.

Shawn


thanks, i was hoping for pics with the lens, but i guess i can go to flickr for that. i convert a bunch of lenses for myself (including that contax 35/3.5 from the T4 mentioned on your 35mmc link, so i would just convert it myself. seems like there might be some busted L35AFs on eBay for around $20 ...

i would really like a contax T3 lens to try, but have not been able to find one of those cheap.




Dec 05, 2018 at 12:35 AM
nehemiahphoto
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p.2 #19 · MS Optics Sonnetar 73mm f1.5


Crops from an a7rii. ISO 100, -2/3 EV comp, manual focus at center and infinite. Default sharpening, and +.15 exposure, no fringing correction.

At f4, extreme corners look good, not great. At f5.6, very good, f8 is crispy. Diffraction at f11. Unless you're looking at crops in the extreme corners at 42mp, f4 is perfectly fine IMO. Midzone doesn't change much from f4-f11.












Dec 06, 2018 at 06:29 PM
hiepphotog
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p.2 #20 · MS Optics Sonnetar 73mm f1.5


This gotta seal the deal for a lot more people on the fence right now. I don't think the Sonnetar 50 is as good. This is the shortest, lightest fast 75.


Dec 06, 2018 at 06:37 PM
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