Canon 50/1.8 LTM - a Question

T

tedwhite

Guest
I have one of these little guys and it works just fine. My question is this: Regardless of whether I mount it to my Bessa R or on my M6 with the appropriate adapter, in each case the lens aligns itself a little bit to the left of dead center. Seems not to affect focusing or anything else in the slightest. I wonder if it just does that for the hell of it, or perhaps to show its owner that it wouldn't do that on a genuine Canon RF body?

As I don't have a Canon body, I can only speculate.

Oh, and also, the infinity lock drives me crazy. What is the reason for such a device? And, if I disable it will I be banished from the forum?

Ted
 
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If you are refering to the distance scale, some of the Canon lens have it off centre, nearer to the viewfinder. It's not a defect.

The infinity lock is one of those that that you love or hate. But having it around certainly helps with the mounting/unmounting of (smaller) lenses. If you don't like it, you can just use a small screw driver to take it out. Unscrew from the bottom.

Cheers,
 
As Benny Ng says, the infinity lock helps in handling small lenses. I had a Serenar 50/1.8 which mounted the same way on an M3 (with M adapter) and on a VT Deluxe.
 
Thank you all for the information. Hadn't thought about the infinity lock as an assist for mounting small lenses, but it clearly makes good sense, and also thank you, benny, for your comment about the distance scale. I believe I'll go ahead and disable the infinity lock and see how I like it that way.
 
If you remove the parts from your infinity lock make sure you save them. Some collector down the road will consider that when he purchases a lens. It better be "complete". Actually, you soon become so used to the infinity lock that you won't find it a bother.
 
I hated the infinity lock and complained long and loud. Until I got used to it. Now I find it useful most times and annoying only when I'm focusing on an object that is almost, but not quite at infinity, and it keeps snapping shut, making it hard to twiddle into perfect focus. Which I seldom manage, anyway.
 
Does anyone have a junk 50/1.8 they want to get rid of? I have a cosmetically near perfect 50/1.8, but it has one element that has been etched with fungus. All the other glass surfaces are good. I'm hoping to get a replacement element that is hopefully in fairly good shape...
 
Does anyone have a junk 50/1.8 they want to get rid of? I have a cosmetically near perfect 50/1.8, but it has one element that has been etched with fungus. All the other glass surfaces are good. I'm hoping to get a replacement element that is hopefully in fairly good shape...
Sorry, no, but a bit OT, has anyone else noticed a big tick up on the price of these lenses? They're going for at least 30% more today than when I got mine last year... maybe more. Even a "bad" lens that would serve your problem, digitalintrigue, are getting too high. We gotta learn to keep our mouths shut around here.
 
The last two went for US 243 and 100.17 on ebay, Jim. Just normal fluctuation, I think.

Also, this is one of these lenses that is usually cheaper on KEH than on ebay.

I still prefer the 50/1.4 and the 1.5 (just to rub it in 🙂 ). Both killer lenses.

Ted, I got used to the infinity lock after some time. Makes fast focusing easier for me. The infinity position at 1-2 oclock (when seen from the front) is normal.

Best,

Roland.
 
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Canon 1.8/50mm ? I can't understand all the fuzz about them. I would take a J 8 any time before I take a Serenar. Typically overpriced, overhyped and overrated oriental ( copyright by K.Rockwell) lens.

(OK that should do the Job! Let's keep those Jewels among ourselves!)
Des
 
Swapping elements is a very bad idea. You will wind up with a lens with a different focal length, it will not be collimated, and the rangefinder cam won't be accurate either. Save future buyers from this hell, don't make a mutt lens!
 
The Canon 5/1.8 is a horrible lens that is not "like a Summicron" or anything similar to such crazy suggestions.
 
Uh, ok. I wouldn't be putting in an element from a different focal length lens, so it wouldn't change the focal length. But whatever.

It's not a Serenar, it's like this:

canon_rf_50_1_8_230159_2.sized.jpeg


canon_rf_50_1_8_230159_1.sized.jpeg
 
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In defense of Serenar lenses--

I have the Type II Serenar 35/2.8 and it is just lovely. Nice and compact, heavy, unlike the CV lenses, and the quality of the images are classically appealing.

3056286054_8eb17f32ec.jpg


3052817860_2c210f31a4.jpg
 
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