Old 35/2 Summicron vs. 40/2 Summicron-C
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Jim Evidon
Jim
Here is a cure for the odd 5.5 series filter mounting on the Summicron C:
I contacted DAG and discussed the problem with Don. We came up with a cheap and safe solution. Have him cut 39mm threads in the outward facing flange on a Leica p/n 11251 filter adapter.
That is the standard filter adapter for this lens. Then your standard 39mm filters and lens hoods will screw in very securely. Mine works fine and I now use the 40mm Summicron C as the standard lens on my M8. If you are interested, call Don at DAG and discuss it with him.
I contacted DAG and discussed the problem with Don. We came up with a cheap and safe solution. Have him cut 39mm threads in the outward facing flange on a Leica p/n 11251 filter adapter.
That is the standard filter adapter for this lens. Then your standard 39mm filters and lens hoods will screw in very securely. Mine works fine and I now use the 40mm Summicron C as the standard lens on my M8. If you are interested, call Don at DAG and discuss it with him.
Palaeoboy
Joel Matherson
Im surprised they havent risen before now actually. With the release of the M8 I thought the compact 40's would be snapped up as the perfect standard lens for them with is crop factor but its seems to have take a while for prices to reflect that.
Bruin
Noktonian
A good alternative is the Nokton 40 SC...limit yourself to f2 if you're worried about "bad" bokeh and save f1.4 for emergencies 😉
Resolution, flare resistance, and bokeh are all VERY close to the 'cron C and Rokkor. Prices are similar, and hood and filters are easier to find. It's a touch longer in actual focal length, though.
Long story short: I was looking for an affordable 35/2 or faster as a compact one-lens kit for my ZI. Focus down to 0.7m is a must for me. Almost got the CLE Rokkor, but after a lot of research and comparisons the Nokton SC won out.
Resolution, flare resistance, and bokeh are all VERY close to the 'cron C and Rokkor. Prices are similar, and hood and filters are easier to find. It's a touch longer in actual focal length, though.
Long story short: I was looking for an affordable 35/2 or faster as a compact one-lens kit for my ZI. Focus down to 0.7m is a must for me. Almost got the CLE Rokkor, but after a lot of research and comparisons the Nokton SC won out.
Vincenzo Maielli
Well-known
I own a Summicron 35/2 with goggles (mounted on Leica M7 for colur slides), a Summaron 35/2.8 with goggles (mounted on Leica M3 to use the BW films) and Summicron C 40/2, that i use on a Leica CL, as every day camera.
The Summicron C 40 is a very fine lens, comparably with Summicron and Summaron first series. The true problem, with the Summicron C 40/2 is a filter thread mount, that is a 5.5 Series type; correspond to 39x0.75 mm screw mount. This particular thread mount is the same of the Nikon filter in 39 mm size, therefore you can simply solve the filter problem.
But if the original rubber lens hood is lacking or is broken, this is a very hardly solvable trouble.
Ciao.
Vincenzo
The Summicron C 40 is a very fine lens, comparably with Summicron and Summaron first series. The true problem, with the Summicron C 40/2 is a filter thread mount, that is a 5.5 Series type; correspond to 39x0.75 mm screw mount. This particular thread mount is the same of the Nikon filter in 39 mm size, therefore you can simply solve the filter problem.
But if the original rubber lens hood is lacking or is broken, this is a very hardly solvable trouble.
Ciao.
Vincenzo
noimmunity
scratch my niche
Roland did a test with the Nokton 40 and the cron C, and, at apertures smaller than f/2, the Nokton had bokeh that was generally better, with better color rendition and less flare.
Gabriel M.A.
My Red Dot Glows For You
I used to own both the Minolta Rokkor-M 40mm f/2 and the 35mm Summicron version IV at the same time. I reluctantly sold the Rokkor-M. I say "reluctantly" because I was using the 35mm Summicron more (and still do), and the 40mm didn't get used as much as it deserved to. Instead of having it sit and do nothing, I sold it to some weirdo (who I'm sure will chime in 😉 )
There are only three main differences between these two lenses: one says "35mm", the other "40mm"; one has a dented tab, the other a rounded tab; one has a square sunshade, the other a round, collapsible sunshade.
Performance-wise, they are exactly identical. Or "virtually", if you take into consideration the slight difference in perspective when shooting at close range and wide open. Other than that, really, the rendering is indistinguishable one from the other.
There are only three main differences between these two lenses: one says "35mm", the other "40mm"; one has a dented tab, the other a rounded tab; one has a square sunshade, the other a round, collapsible sunshade.
Performance-wise, they are exactly identical. Or "virtually", if you take into consideration the slight difference in perspective when shooting at close range and wide open. Other than that, really, the rendering is indistinguishable one from the other.
