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A7r, A7r2 - and why I'm keeping both ...

k-hawinkler

Well-known member
Here is an example with weird reflections. Full image, reduced in size.



And a crop


A7r2 + Leica Summilux-R 80/1.4
 

Mark Muse

New member
Hi, I appreciate your experience and opinions concerning the A7R2.

But now I would like to ask the forum, if anyone of you has experience,
using the Hasselblad / Zeiss CF-Lenses attached to the A7R2.

I would use my Novoflex E-Lens adapter.

Thank you for your reply.

Rudiger
I acquired several Hassi F and FE lenses to use on a Mirex TS adapter on a Nikon 800e. I wanted the F series because they do not have a shutter (less weight), and because there was no leaf shutter they could have larger max apertures. I have the 80/2.8 F, 150/2.8 FE (I think it is 2.8, haven't used in a while), and 250/4 F (Teletessar). The character of each is certainly preserved on these smaller formats.

I have only used the 80 F on the Sony's, adapting the Mirex via Novoflex to e mount. A first impression might be that it is not very sharp, but it has a smoothness that is really delightful. And it is certainly sharp enough for me.

The 150 FE, at least on the 800e, is more typical modern Zeiss.

The 250 F is a Teletessar, which is an old design, and by recollection its age shows in aberrations.

Here are a couple of links to images from the 80:
http://markmusephotographs.com/wordpress/2013/12/10/clifton-forge/
http://markmusephotographs.com/wordpress/2013/12/01/aleksa/

One from the 150:
http://markmusephotographs.com/wordpress/2012/11/19/new-creek-mountain-and-north-fork-gap/

From the 250:
http://markmusephotographs.com/wordpress/2013/12/29/hairy-river/
http://markmusephotographs.com/wordpress/2014/01/20/across-the-river/
 

k-hawinkler

Well-known member
Hiep (alias hiepphotog) and I compared infinity corner performance for a number of lenses on a Stock A7r2 and a Kolari modified A7r2.
In the A7r2.Kolari.mod the sensor cover glass was replaced with a thinner one that was also treated against moisture.
I am now waiting for the 3-rd generation modification that hopefully also includes anti-reflection coating additionally.


Our results are posted here Kolari Mod's Improvements: A Summary of Tests - FM Forums
starting at p.3 #3 · Kolari Mod's Improvements: A Summary of Tests
for the following M lenses.

ZEISS Distagon 2,8/15 ZM • Lens seems better in the corner on the A7r2.Kolari.mod than on the M9 - but need to verify.
LEICA TRI-ELMAR-M 1:4/16-18-21 APH. • A7r2.Kolari.mod slightly improved over Stock A7r2 for all focal lengths.
LEICA ELMARIT-M 1'2.8/21 ASPH. E 55 • Surprise. Lens seems fully usable WO on A7r2.Kolari.mod, slight residual field curvature remains though.
LEICA SUMMICRON-M 1:2/28 ASPH. E 46 • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA ELMARIT-M 1:2.8 ASPH. E 39 • Sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
ZEISS Distagon 1,4/35 ZM • Extremely sharp at f/5.6 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA SUMMILUX-M 1:1.4/35 ASPH. E 46 (non-FLE) • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA SUMMICRON-M 1:2/35 ASPH. E 39 • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA SUMMILUX-M 1:1.4/50 ASPH. E 46 • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA APO-SUMMICRON-M 1:2/50 ASPH. • Best at f/5.6 to f/11 on A7r2.Kolari.mod, minimall (insignificant?) improvement over Stock A7r2.
LEICA SUMMICRON-M 1:2/50 E 39 • Very sharp at f/5.6 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
Ernst Leitz GmbH Wetzlar Summicron f = 5 cm 1:2 (Rigid Summicron) • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA ELMAR-M 1:2.8/50 E 39 (Collapsible) • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEITZ CANADA ELMAR 1:3.5/65 (Visoflex) • Very soft - had CLA done, but wonder whether the lens was assembled correctly? I doubt it! :shocked:
LEICA APO-SUMMICRON-M 1:2/75 ASPH. E 49 • Best at f/5.6 to f/11 on A7r2.Kolari.mod, minimal (insignificant?) improvement over Stock A7r2.

LEITZ CANADA SUMMICRON 1:2/90 • No discernable degradation of Stock A7r2 relative to Kolari modified A7r2
LEICA ELMARIT-M 1'2.8/90 E 46 • No discernable degradation of Stock A7r2 relative to Kolari modified A7r2
LEITZ WETZLAR ELMARIT 1:2.8/90 • No discernable degradation of Stock A7r2 relative to Kolari modified A7r2
LEITZ LENS MADE IN CANADA TELE-ELMARIT-M 1:2.8/90 • No discernable degradation of Stock A7r2 relative to Kolari modified A7r2
LEITZ WETZLAR TELE-ELMAR 1:4/135 • No discernable degradation of Stock A7r2 relative to Kolari modified A7r2


We also compared a number of FE lenses. Here are our conclusions Kolari Mod's Improvements: A Summary of Tests - FM Forums
starting at p.4 #17 · Kolari Mod's Improvements: A Summary of Tests
for the following FE lenses.

ZEISS SONY • Carl Zeiss Sonnar FE 2,8/35 ZA 49/0,35m/1,15ft (Zony) • Stock A7r2 extremely sharp at f/4, minimal (insignificant?) degradation for A7r2.Kolari.mod in far corner.
MITAKON ZHONGYI SPEEDMASTER 0.95/50MM M67 Version 2 • Stock A7r2 sharp at f/8. A7r2.Kolari.mod slightly better?
ZEISS SONY • Carl Zeiss Sonnar FE 1,8/55 ZA 49/0,50m/1,64ft (Zony) • Stock A7r2 sharp at f/5.6. Slight degradation for A7r2.Kolari.mod in far corner.
SONY FE 2.8/90 MACRO G OSS 62/0.28m/0.92ft • Stock A7r2 sharp at f/5.6. Minimal (insignificant?) degradation for A7r2.Kolari.mod in far corner.


We also compared these R lenses.

LEICA VARIO-ELMAR-R 1:2,8-4.5/28-90 ASPH. E67
LEICA VARIO-ELMAR-R 1:4/35-70 E60
LEICA SUMMILUX-R 1:1.4/80 E67
LEICA VARIO-ELMAR-R 1:4/80-200 E60
LEICA VARIO-ELMAR-R 1:4.2/105-280 E77
LEITZ APO-TELYT-R 3.4/180 E60
LEICA APO-TELYT-R 1:4/280

They should be usable just fine on either Stock A7r2 or Kolari modified A7r2.
 
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Annna T

Active member
"Hiep (alias hiepphotog) and I compared infinity corner performance for a number of lenses on a stock A7r2 and a Kolari modified A7r2.
In the A7r2.Kolari.mod the sensor cover glass was replaced with a thinner one that was also treated against moisture.
I am now waiting for the 3-rd generation modification that hopefully also includes anti-reflection coating additionally."

Wow ! Thanks for sharing, lot of work there and quite a reference ! You should also post that in the appropriate sticky thread concerning the use of Leica lenses.

I have just sold my Summilux 50mm F1.4, but have no regrets giving your results.
 
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k-hawinkler

Well-known member
Here is an example with weird reflections. Full image, reduced in size.



And a crop


A7r2 + Leica Summilux-R 80/1.4

I just noticed that this filter was mounted: LEICA E67 UVa 13386 :banghead:
Such a flat piece of glass upfront certainly could be responsible for those ugly reflections. :grin:
I will have to repeat this shot without a filter. :eek:
Sorry. The filter came with the lens. I noticed that but didn't give it temporarily any further thought. :facesmack:
 
V

Vivek

Guest
K-H, Thanks for posting the results from your testing. :)

It is clear that the Kolari mod is useless for me.
 
V

Vivek

Guest
Sure Vivek, if the corners don't matter, I agree.
Unless I am reading it incorrectly, except for these (and a couple of old lenses):

LEICA ELMARIT-M 1'2.8/21 ASPH. E 55 • Surprise. Lens seems fully usable WO on A7r2.Kolari.mod, slight residual field curvature remains though.
LEICA SUMMICRON-M 1:2/28 ASPH. E 46 • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA ELMARIT-M 1:2.8 ASPH. E 39 • Sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
ZEISS Distagon 1,4/35 ZM • Extremely sharp at f/5.6 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA SUMMILUX-M 1:1.4/35 ASPH. E 46 (non-FLE) • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA SUMMICRON-M 1:2/35 ASPH. E 39 • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
LEICA SUMMILUX-M 1:1.4/50 ASPH. E 46 • Very sharp at f/8 on A7r2.Kolari.mod. Stock A7r2 can't catch up.
and that too at f/8, Kolari mod works. Why would I want an f1.4 lens that is very sharp at f/8 (ie way past diffraction)? :confused:
(Better to sell these off and switch to better lenses?)

It is actually worse for the system lenses as I read it, no?
 

k-hawinkler

Well-known member
Unless I am reading it incorrectly, except for these (and a couple of old lenses):



and that too at f/8, Kolari mod works. Why would I want an f1.4 lens that is very sharp at f/8 (ie way past diffraction)? :confused:
(Better to sell these off and switch to better lenses?)

It is actually worse for the system lenses as I read it, no?

We are only discussing far or extreme corners here at infinity, Vivek.
The main areas of the images are fine, either way.
 
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k-hawinkler

Well-known member
Two Views from Yesterday's Morning Walk.





Sony A7r2 + Leica Elmar-M 50/2.8 (collapsible), focus at infinity, the bottom of the images not within DoF. :grin:
 

k-hawinkler

Well-known member
I just noticed that this filter was mounted: LEICA E67 UVa 13386 :banghead:
Such a flat piece of glass upfront certainly could be responsible for those ugly reflections. :grin:
I will have to repeat this shot without a filter. :eek:
Sorry. The filter came with the lens. I noticed that but didn't give it temporarily any further thought. :facesmack:
Indeed, these kinds of reflections/flare were caused by the filter.
However, that doesn't imply that the 80/1.4 lens doesn't flare at all.
Here is an example.






A7r2 + Leica Summilux-R 80/1.4, no filter
 

k-hawinkler

Well-known member
Whereas the Noct-NIKKOR 58/1.2 was the first Nikon lens with an aspherical element, the AF NIKKOR 28/1.4 D was the second IIRC.



A7r2 + AF NIKKOR 28/1.4 D
 

k-hawinkler

Well-known member
A paper about the development of the Noct-NIKKOR.



NIKKOR - The Thousand and One Nights: Tale 16: - An aspherical surface got over sagittal coma flare - AI Noct Nikkor 58mm F1.2 by OHSHITA, Kouichi

BTW, my lens is the Ai-S version that was modified in 1982 from the 1977 Ai design.
The 1982 version has 9 aperture blades (Yup, I counted them), the 1977 version has 7.

Nikon 58mm f/1.2 Noct-NIKKOR

Other Nikon papers can be found here: The Thousand and One Nights | NIKKOR

including this one.



NIKKOR - The Thousand and One Nights: Tale 28: - An lens inheriting the concept of the Noct NIKKOR - Ai AF Nikkor 28mm F1.4D by OHSHITA, Kouichi
 
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