Leica LTM Revisiting Canon 35mm 1.5 and 50mm 1.5 Sonnar

Leica M39 screw mount bodies/lenses
The 85/1.5 is fine close-up and wide-open. Telephoto lenses do not suffer as much from spherical aberration/ focus shift as do shorter focal length lenses.
 
I love the 50/1.5 paired with slide film like Velvia!
WSTFB7x.jpg
 
Sonnar Brian said:
I have both lenses: The Canon 50/1.5 is optimized for F2~F2.8, the Nikkor is optimized for wide-open use. I changed the shim on my Canon (thicker) and optimized for wide-open use. The Canon is "less" over-corrected for spherical aberration, smoother Bokeh. The same is true when comparing the (rare) Nikkor 5cm F1.5 with the 5cm F1.4.

https://www.rangefinderforum.com/forums/showpost.php?p=3052576&postcount=11

I added a picture of the SR71 taken with the Nikkor. I took the Canon, Nikkor, and J-3+ out that day for a comparison shoot.
Click to expand...

I don't quite understand, and maybe this is a topic for a different thread, but wouldn't a thicker shim that moves the lens block further out increase the front focus you'd expect wide open in a Sonnar lens that's optimised for f2.8?

Anyway, three nice lenses in here, I'm happy I have at least one of them (the 50mm) in my humble collection.
 
lukx said:
I don't quite understand, and maybe this is a topic for a different thread, but wouldn't a thicker shim that moves the lens block further out increase the front focus you'd expect wide open in a Sonnar lens that's optimised for f2.8?

Anyway, three nice lenses in here, I'm happy I have at least one of them (the 50mm) in my humble collection.
Click to expand...

You are right- I keep thinking of 200 J-3's I've done...

Changed the text to read "I have both lenses: The Canon 50/1.5 is optimized for F2~F2.8, the Nikkor is optimized for wide-open use. I changed the shim on my Canon ( it was thicker, reduced it by 0.1mm) and optimized for wide-open use. The Canon is "less" over-corrected for spherical aberration, smoother Bokeh. The same is true when comparing the (rare) Nikkor 5cm F1.5 with the 5cm F1.4."

I had several shims for the Canon 50/1.5, had bought a parts lens.
 
Thanks for the clarification, Brian. I was doubting my understanding of the whole Sonnar focus-shift concept for a moment there 😀

Nice shots, Mackinaw!
 
raid said:
Well done, Jim. The B&W rendering works well with the Canon 50/1.5 ltm.
Click to expand...

This thread has me reconsidering what 50mm lens should be on my M240. I have been using a collapsible 50mm Summicron or a LTM Canon 50/1.4, but the 50/1.5 really does have a nice look once I convert the image to B&W in PS and play around with the contrast.

Nice thread, glad you started it.

Jim B.
 
lukx said:
Thanks for the clarification, Brian. I was doubting my understanding of the whole Sonnar focus-shift concept for a moment there 😀
Click to expand...

A couple of Sonnar formula lenses are under-corrected for spherical aberration: the Nikkor 10.5cm F2.5, the CZJ 8.5cm F2 Sonnar, and Jupiter-9 that I know of. With a telephoto lens- not as pronounced of a shift as you get in a 5cm lens. That case- focus is towards infinity as you open up the aperture.

I was looking at a lot of RISC assembly language code before making the original post... Brain on Overload.
 
Mackinaw said:
This thread has me reconsidering what 50mm lens should be on my M240. I have been using a collapsible 50mm Summicron or a LTM Canon 50/1.4, but the 50/1.5 really does have a nice look once I convert the image to B&W in PS and play around with the contrast.

Nice thread, glad you started it.

Jim B.
Click to expand...

Nice photos, Jim!! Yes, you should definitely give the Canon 50/1.5 a go on your M240…

Leica M-E Type 240, Canon 50mm f1.5:

Temple Coffee by Steve Macfarlane, on Flickr
Waiting for a catch by Steve Macfarlane, on Flickr

Watching the boarders by Steve Macfarlane, on Flickr
 
These are beautiful images. Thank you for posting them here. The Canon 50/1.5 delivers when the photographer knows how to create images.
 
raid said:
1. Canon 35/1.5: I have not found the right lens hood for it yet, but I will have one somewhere in my photography gear closet. I don't want any vignetting.
Click to expand...

Hello everyone,

I have the 35 Canon 1.5 in LTM .
Tried various step up rings, different types of 48mm filters and always ended up with some vignetting.
I know use the lens with the wide W-50 Canon original hood without any filter.

Had to shim a LTM to M adapter down to 0,77mm width to get proper RF calibration with my lens on my M cameras.

Here are some shots taken with this 35 Canon 1.5:

Taken with a M2 and Acros 100:



Baía de Guanabara by JM__, on Flickr




Untitled by JM__, on Flickr



M2 and TMax 100:





Letizia Battaglia - Palermo / IMS RJ by JM__, on Flickr

Letizia Battaglia - Palermo / IMS RJ by JM__, on Flickr





and on a Leica M10:





Untitled by JM__, on Flickr

Juveny by JM__, on Flickr



Best , JM.
 
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