Leica 35mm f/2.5 Summarit-M

BrianS

Super Moderator
Apr 3, 2013
Great contrast and composition.

The first shot- "the kind of nightmare that every image compression algorithm has late at night".
 

asiafish

All-Pro
Aug 9, 2013
Bakersfield, CA
Andrew
Every time I find some extra money in my pocket and think about getting a "better" 35 I shoot with the Summarit and change my mind. The only downside is speed, and compared to a Summicron its just not enough speed to matter.
 

asiafish

All-Pro
Aug 9, 2013
Bakersfield, CA
Andrew
When optimizing lenses, I could look at the file size of a JPEG and know if it was close.
How does that work? Is there a target size for MM files? I most often use Silver Efex for JPEG compression at 240 bits. From what my eyes tell me my lenses are all focusing accurately on my camera. Is there something other than focus that is typically optimized like centering?

Other than my Sonnar, the rest of my lenses are all new and modern (four Leica, one Zeiss), I would imagine that neither of those companies let too many slip through the production line with alignment or centering issues.
 

BrianS

Super Moderator
Apr 3, 2013
For a set target: the file will be larger based on more detail in the photo. So- choose a good target, best focus will produce a bigger file. This works for focus tests. For example: a flat fence slat. Better the focus, more detail, larger file. I used to write my own image compression algorithms, long before Photoshop and JPEG were out.
 

asiafish

All-Pro
Aug 9, 2013
Bakersfield, CA
Andrew
Just arrived today at Fort Leonard Wood, Missouri for 2 weeks military training. I was at this same base 29-years-ago for Basic Combat Training and stayed in the old WWII barracks.

They still have one company area preserved and restored, but they were nowhere near as nice when I stayed in them.

Leica M9 with 35mm f/2.5 Summarit-M at f/8 and ISO 160, minimal post.

L1001813.jpg by Lawman1967, on Flickr

L1001814.jpg by Lawman1967, on Flickr
 

funkydog

Rookie
May 6, 2014
I hear there's some barrel distortion - easily corrected in an M9 or on the PC - although I wonder how the lens performs for film shooters who don't have a digital workflow.
This could be a sleeper cult lens but it'll probably be a hit only long after Leica has discontinued it. There currently are many other alternatives in the same price range or lower (e.g. Biogon, CV SKopar, Hexanon M and L, old LTM lenses)
 

funkydog

Rookie
May 6, 2014
Uncorrected barrel distortion is probably going to be the norm for lens design since it's so much easier to correct in software than doing it optically.
 

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