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How different rangefinder lenses perform on Nikon Z6
Old 02-28-2019   #1
Timmyjoe
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How different rangefinder lenses perform on Nikon Z6

I searched the internet for over a month, trying to find information on how different rangefinder lenses performed on Full Frame mirrorless cameras. There was quite a bit of info available for how different lenses performed on the Sony A7 series of camera, but little about how they performed on the Nikon Z series.

I was able to acquire a Nikon Z6 for a couple days, so I went thru all my rangefinder lenses, and a series of adapters, to see how they performed with the lower end Nikon Z camera. Here are my results.

I set myself up about 6 feet from this rather messy bookcase, with lots of detailed LEGO's on top, and focused the camera each time (using the zoom focus feature) on the red USA logos on the bottom of the Saturn V rocket.



I shot each lens from wide open to f16. Here's what I discovered.

Voigtlander Super Wide-Heliar 15mm f4.5 (Leica M mount)
--Edge to Edge Sharpness f4.5 – f16
--Vignettes at all apertures, but can be easily corrected in post

Voigtlander SC Skopar 21mm f4.0 (Nikon S mount)
--Edge to Edge Sharpness f5.6 – f16
--Vignettes wide open, but can be easily corrected in post

Canon 28mm f2.8 (LTM mount)
--Edge to Edge Sharpness f8.0 – f16
--Vignettes at all apertures, from f5.6 can be corrected in post

Leica Elmarit-M 28mm f2.8 (Leica M mount) (pre-ASPH)
--Edge to Edge Sharpness f5.6 – f16
--Vignettes wide open, but can be easily corrected in post

Canon 35mm f1.8 (LTM mount)
--Edge to Edge Sharpness f5.6 – f16
--Vignettes wide open, from f2.8 can be corrected in post

Nikon W-Nikkor 3.5cm f1.8 (Nikon S mount)
--Edge to Edge Sharpness f4.0 – f16
--Vignettes wide open, but can be easily corrected in post

Nikon Nikkor-S.C. 5cm f1.4 (Nikon S mount)
--Acceptably sharp center area f2.8 – f5.6
--Edge to Edge Sharpness f8.0 – f16
--Vignettes wide open, but can be easily corrected in post

Nikon Nikkor-S.C. 5cm f1.4 (LTM mount)
--Acceptably sharp center area f2.8 – f5.6
--Edge to Edge Sharpness f8.0 – f16
--Vignettes wide open, but can be easily corrected in post

Leica Summilux 50mm f1.4 (Leica M mount) (pre-ASPH)
--Edge to Edge Sharpness f2.0 – f16
--Vignettes wide open, but can be easily corrected in post

Nikon Nikkor-P.C. 8.5cm f2.0 (LTM mount)
--Acceptably sharp center area f2.0 – f4.0
--Edge to Edge Sharpness f5.6 – f16
--Vignettes wide open, but can be easily corrected in post

Nikon Nikkor-P.C. 8.5cm f2.0 (Nikon S mount)
--Acceptably sharp center area f2.0 – f4.0
--Edge to Edge Sharpness f5.6 – f16
--Vignettes wide open, but can be easily corrected in post

Leica Elmarit-M 90mm f2.8 (Leica M mount)
--Acceptably sharp center area f2.8 – f4.0
--Edge to Edge Sharpness f5.6 – f16
--Vignettes wide open, but can be easily corrected in post

Nikon Nikkor-Q.C. 13.5cm f3.5 (LTM mount)
--Edge to Edge Sharpness f3.5 – f16
--Vignettes wide open, but can be easily corrected in post

I took the RAW camera files, ran them thru Adobe DNG converter, then imported them into Apple's Aperture 3. I used Aperture's vignette control to correct vignetting.

Hope this information is helpful for anyone considering a Nikon mirrorless full frame camera to use with their rangefinder lenses.

Best,
-Tim
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