7Artisans lenses - no such thing as a free lunch

...Right now I'm using the 35mm f2 lens on my 'beater' M4-2, taking it places where I'm too scared to take my pricey Leica glass...
Does your 35 mount properly without interfering with the lens release button on the M4-2? The flange on the 35 depresses the button when its mounted on my M4-2 so the lens doesnt actually lock.


My 50mm F1.1 was good out of the box but fell out of focus within a month. I had to readjust and tighten the adjustment screws.
My 35mm F2 was good out of the box and has stayed good.
I purchased the 75mm F1.25 but it seems to be taking a trip around the world according to the DHL tracking number. I bought directly through 7Artisans.

Free or not, but where is 21 f1.5? Or 35 f1.4. Is it arrested development now?

Looks like they're being made under the "TTArtisans" moniker.
https://www.ttartisan.com/cpjs
both 7Artisans and TTArtisans are made by "DJ-Optical".
 
Just found this thread. It's not just the M mount lenses. I obtained a 25mm f1.8, as new with all packaging from a private party for my EM10. Had to shim (by trial and error) about .009 in. to bring the focusing at infinity out to the infinity mark on the lens. However the rest of the distance scale printed on the focusing ring is completely inaccurate. Not just a little off, but way, way off. The numbers appear to be screen printed on the focusing ring so I could see a scenario where a template for another of their lenses was mistakenly used on this lens.
Now that infinity is set I'll be spending an interesting afternoon making up a corrected scale, on paper, that I will tape to the focusing ring. Cannot be perfect, but should be good enough to scale focus if stopped down to f8 or more.
My lens also turns past the infinity mark.
 
I also had the 25 1.8 on my OMD 10 mk2. i’m not sure who actually makes
that lens though as I have seen it under several different brand labels.
It was ok but I traded it for the Oly 25 1.8 which is stunning.
 
Measuring tape to object is really the best way to go.

Absent a digital Leica M, is there an easy way to calibrate the focus on the 7A lenses? Or are all the solutions a bit kludgy, like using an appropriately sized piece of ground glass and a loupe with the back door open?
 
I also had the 25 1.8 on my OMD 10 mk2. i’m not sure who actually makes
that lens though as I have seen it under several different brand labels.
It was ok but I traded it for the Oly 25 1.8 which is stunning.

Out of my budget now, but perhaps after I unload a lot of unused photo gear. If I can only get one m4:3 Olympus lens that will be the one.
 
I just received one of the 35mm 1.4's @ 189.00 with a imitation leica style hood in Sony E mount. and yes it will focus past Inf. at the stop. But inside I am very happy with the results in low light. It seems to live on my A7s right now, but it's a new lens. If i want sharpness I do also have a old Ver1 summicron I use mostly old M lenses on my Sony. The only cheap feeling on the lens is the f stop ring is plastic and a little loose.
wbill
 
Here are my two excellent J-3 lenses for Leicas, one with Amedeo adapter... I've been thinking about buying a 7A 50 f1.1, but what for? Because it is larger and bulkier? An even shallower depth of field? Is the difference between 1.1 and 1.5 worth mentioning at all, having in mind the high ISO capabilities of modern sensors? One can buy lot of eggs, milk and cheese for 300$. The only justification for buying such a lens is hidden in a clever marketing move - if you pay 300$, you can get the CREATIVE opportunity to fiddle with close focus and infinity.

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I was curious about 7A lenses and this is why I bought one lens to try it out. I still managed to provide for my family eggs, milk, and cheese. I get your point, though.
 
I also thought about the 50 but since I have way too many 50's as it is right now went with the 35 1.4 to dip my toe into 7a lenses
 
7Artisans lenses - no such thing as a free lunch

Ive been using the 35 f2 for almost a year now. It might be the best $300 I ever spent.
I have a hard time finding fault with it. The images it produces are great. The build quality is better than I expected, and the focus was dead on right out of the box.
It has been more or less glued to my M6 since the day it arrived and has been to Europe with me twice.

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I don't get how you can adjust the focus ramp of the helicoid for BOTH near focus and infinity....It sounds to me you can optimise one or the other, but not both.


Perhaps lenses differ from one to the other but I agree with what Ricoh says here.


As delighted as I have been with my pair of 50mm f1.1 lenses my experience with a recently acquired 75mm f1.25 was terrible not only for the very reasons mentioned above but also because of the horrendous amount of focus-shift as the aperture size was decreased. Having had terrible results in casual tests just after the lens arrived I attached to to a tripod-mounted M Digital in the studio and carried out some controlled tests. To cut a very long-winded story short once calibrated for near-focus duties the lens couldn't focus at infinity. And, needless to say, vice-versa.


Furthermore - and in some ways more worrisome - when the lens was calibrated to focus accurately (either close-up or for infinity) wide-open it back-focussed horrendously once stopped-down meaning that - obviously - without being used stopped-down in a live-view situation (at shooting aperture) it would be impossible to have accurate focus when 'correctly adjusted' on a Leica M.



I really was greatly disappointed as I really wanted to love the lens. Got a full refund which I put towards buying a Leica 75 and couldn't be happier with the new (used) lens. OK; I lose 2 stops in speed but the D-o-F and o-o-f results are sublime and wide open the sharpness is spectacular.


I'd be more than happy to try a different sample of the 7a 75mm - mine might well have been a Dog - but perhaps 7artisans isn't quite there in terms of quality control these days?


Philip.
 
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