m42 to eos adapter with af Confirm

KeithLaflam · Joined: 07 Aug 2012 Posts: 2

Hello, First Post to the group, Really hoping that someone can help me understand the M42 to eos adapter. I purchased my first lens 135mm 2.8 and the af Confirm adapter by fotodiox.. I set the adapter and chip to the lens range 135mm and the aperture. But i can't seem to get the focus correct. has anyone had to fine tune these things..

Keith.

SonicScot · Posted: Sat Aug 11, 2012 9:24 am Post subject:

Hi Keith, hopefully your adapter allows you to focus beyond infinity, if so you can add a very thin shim to bring infinity in line. I recently spent an evening doing just that to a dozen of my lenses, it's great to have infinity back. Very Happy

_________________
Gary
Currently active gear....
7D (Magic Lantern Alpha II)
3M-5CA 500/8
Tair 3 4.5/300-A
CZJ 180/2.8
CZJ 135/3.5
Vivitar Series 1 90/2.5 macro (Bokina)
Vivitar Series 1 70-210/3.5 (Kiron)
Jupiter-9 85/2
Helios 44-2 58/2
Nikon 50/1.2 Contax Zeiss Planar 50/1.7
Hartblei 45/3.5 Super-Rotator TS-PC
CZJ Flektogon 35/2.4
Samyang 8/3.5 fisheye

Flickr http://www.flickr.com/photos/gazsus/ Website http://garianphotography.co.uk/

peterqd · Expire: 2014-01-04

-halli- · Posted: Sun Aug 12, 2012 10:40 am Post subject:

When I first started using MF lenses with my Canon 400D, the viewfinder and image were never the same. When the Autofocus chip beeped, the viewfinder was blurred. and when the viewfinder was in focus, the image was blurred.

After further investigation, it seems my AF lenses didn't match up either, but I didn't notice that (through laziness probably!)

I changed the focusing screen for a split screen from eBay and they now line up perfectly. Plus I have the advantage of the 45 degree split screen for Manual Focusing. I put the screen in without the factory shims.

You could also play with the shims on the original focusing screen, but keep the originals as they are set up in the factory.

There's a thread on here somewhere about it, I'm sure.

-halli- · Posted: Sun Aug 12, 2012 12:16 pm Post subject:

Turns out it was on Talkphotography

http://www.talkphotography.co.uk/forums/showthread.php?t=240869&highlight=split+screen

martinsmith99 · Joined: 31 Aug 2008 Posts: 6550 Location: S Glos, UK

AF confirm chips, IMO, are not really worth bothering with.
_________________
Martin - Moderator

MF Lenses User Real Names (add yours)
MF Lenses User Self Pics (add yours)
Gear: Canon EOS 5Dmkii, EOS 50 & 620, T90, AE-1 SLRs, FED2, Zorki6 & Canonette QL17 Giii RFs and stacks of lenses
ms-imaging
My Blog
My Flickr
Old Lens Fanatics Facebook Group