Desmolicious wrote:
And now for something different. I compared the lens on my new to me Rollei P&S camera to the 28mm Asph on my Leica M7:
Comparing the zoom lens @28mm@ on a Rollei QZ35W vs a Leica M7 w/ 28mm Asph 2.8
All pics taken at f2.8 at the same time. Late in the afternoon so the light was not strong.
F2.8 would show the lens' at their 'worst' and thus the easiest way to judge which one is better.
Great test - there is maybe a tiny bit more blur in the enlarged Rollei pictures, but otherwise hard to tell a severe difference.
McGrattan wrote:
Any ideas on what the magenta cast on the edge would be (7artisans 50mm on MP240)
I haven't had such issues with as long a focal length as a 50mm, however such a magenta edge-cast is a curse with certain non-Leica wides, and IME, the right edge is worse affected. My LM-converted Contax G21 f/2.8 Biogon is the worst performer and with the M240 is much harder to correct in PP than the same lens was on my former M9 (pixel density the reason, etc).
The first step I suggest is to try different lens codes for your 7artisans lens and compare results.
If a suitable lens code isn't found,then the issue may be fixable to a large extent by processing through the CornerFix freeware app, or using an LCC (abbrev escapes me) in Capture One Pro. There's also a Flat Field plugin for Lightroom however I haven't tried that yet.
Does the Artisans lens, like Biogon designs, also feature a rear element that is particularly close to the sensor?
lenticular11 wrote: McGrattan wroteAny ideas on what the magenta cast on the edge would be (7artisans 50mm on MP240)I haven't had such issues with as long a focal length as a 50mm, however such a magenta edge-cast is a curse with certain non-Leica wides, and IME, the right edge is worse affected. My LM-converted Contax G21 f/2.8 Biogon is the worst performer and is much harder to correct in PP than the same lens was on my former M9 (pixel density the reason, etc).
The first step I suggest is to try different lens codes for your 7artisans lens and compare results.
If a suitable lens code isn't found,then the issue may be fixable to a large extent by processing through the CornerFix freeware app, or using an LCC (abbrev escapes me) in Capture One Pro. There's also a Flat Field plugin for Lightroom however I haven't tried that yet.
Does the Artisans lens, like Biogon designs, also feature a rear element that is particularly close to the sensor?...Show more →
Yes, the 7artisans does protrude into the camera body, so much so that I can't even use it on my TL2. Surprisingly the color cast was not an issue on a Sony A7S. I'll play with the lens codes but this one is likely heading for the B&S board as I prefer the CV 50/1.5 anyways. Thanks for the reply!