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M42->MAF Adapter With Focus Confirmation |
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Shrek 
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Joined: 25 November 2008 Status: Offline Posts: 66 |
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 Posted: 01 October 2010 at 17:53 |
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Adapter has arrived, thanks James!
I'm having some issues though, even having read through this thread 
When I mount the adapter and switch on, I get my first setting - 28/2.5. Half holding the shutter release down on boot up, and then half pressing the shutter again has no effect whatsover. Nothing changes on the LCD. If the lens is mounted whilst the camera is switched on however, I get my second setting - 135/2.8. The LCD flashes F2.8 then F1 then F2.8 then F1 and so on for about 15 seconds until settling at f2.8 (in white). If I use the camera aperture control to open up wide, the f2.8 goes orange and then white. So...I'm not sure how to access my other two focal lengths - 300/5.6 and 400/6.3. I've tried all sorts! Half pressing the shutter button after attaching the lens has no effect on the values on the LCD and the aperture dial, whilst changing the chosen aperture, doesn't set anything. For example, I can dial to f5.6, but once the F1, F5.6, F1 cycle finishes, the maximum aperture isn't set at f5.6 and the camera still reports a focal length of 135mm. Does anyone have any ideas? Thanks! |
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Canon EOS 5D with Carl Zeiss T*
Canon EOS 60D with Nikon F Sony NEX-3 with anything I can lay my hands on!!! |
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JamesLaoT
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Joined: 22 November 2006 Country: China Location: Beijing Status: Offline Posts: 49 |
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Posted: 08 October 2010 at 14:23 |
Sorry for I have not update the manual in time. Your adapter must be update to new firmware. You can try to use the Lens Release Button to change lens data. After press the Release button,The aperture in the LCD will flash,you can press the release button change the lens data. when you find the right lens data, you can wait about 5 seconds to lock the lens data. You can change lens data any time and do not need turn-off the adapter again. Wish you can find your other two focal lengths soon. |
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Shrek
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Joined: 25 November 2008 Status: Offline Posts: 66 |
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Posted: 09 October 2010 at 09:31 |
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Brilliant
 Thanks James, I can access all the focal lengths now! Edited by Shrek - 09 October 2010 at 09:31 |
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Canon EOS 5D with Carl Zeiss T*
Canon EOS 60D with Nikon F Sony NEX-3 with anything I can lay my hands on!!! |
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lawrenceong
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Joined: 05 September 2010 Location: Ottawa Status: Offline Posts: 4 |
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Posted: 11 October 2010 at 14:23 |
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Hello,
I've read this post, but I'm still a little confused about this -- I have a Helios 44-2, which is a 50/2.0 I believe. This will be installed on the a700. Can I use this adapter to match exactly what I have? if so, would you be able to give me the specific steps? thanks, Lawrence |
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Arkku
Senior Member 
Joined: 04 February 2007 Location: Finland Status: Offline Posts: 500 |
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Posted: 11 October 2010 at 15:47 |
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The Helios-44-2 is a 58mm f/2. You'll probably need to choose either 55mm or 60mm for the focal length in the adapter. Neither should make any practical difference.
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Jocelynne
Senior Member
Joined: 17 June 2009 Location: United States Status: Online Posts: 1700 |
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Posted: 11 October 2010 at 15:51 |
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I have been looking for information about M42/Alpha adapters with the focus confirmation feature. Thank you, all, for this thread. MUCH appreciated.
Jocelynne L. Edited by Jocelynne - 11 October 2010 at 15:56 |
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Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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harte5
Newbie
Joined: 25 January 2011 Location: halifax Status: Offline Posts: 4 |
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Posted: 28 January 2011 at 22:12 |
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where can i get a chip of my sigma 75 200 sigma lens to sony camera
everyone say james lao i looked everywhere on the net and different sites could some one give me email or web site thank for the help 
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Thanks have a great day
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Otakar
Newbie
Joined: 16 July 2009 Location: Czech Republic Status: Offline Posts: 18 |
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Posted: 11 February 2011 at 08:39 |
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Hi,
just buying the chipped M42 adaptor and using that with CZJ Pancolar 50/1,8 on my A700. But I am pretty confusing with dot focus confirmation in the viewfinder: I don't find the dot helpful, it has a wider tolerance for focus than my eyes, so I am not able to trust the dot. May I wrong adaptor or it is normal and the dot works only for roughly quick focusing with next presice focusing by eye. What are your experiences with that? Unfotunately although I am wearing the glasses (-4 diopters) I look to the viewfinder without. Due that I bought dioptric correction. But it is not right enough. My colleagues with Canon or Pentax cameras are able to focus quickly and pretty precise with M42 lenses only with help of focus confirmation. Thanks for your help. |
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OTAKAR
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Arkku
Senior Member
Joined: 04 February 2007 Location: Finland Status: Offline Posts: 500 |
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Posted: 11 February 2011 at 09:36 |
That's my experience as well, but I find that with some practice focusing speed and accuracy improve. |
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Kilkry
Senior Member
Joined: 06 August 2008 Country: Ireland Status: Offline Posts: 239 |
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Posted: 08 December 2011 at 19:20 |
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Right, I'm probably not very bright, but having a multi-data adapter I can't seem to find the other settings.
-> Pressing the lens-release button when the camera is turned on, in A mode and the m42lens is set to its max aperture physically the F number on the LCD turns to --. Keeping the lens-release button pressed it stays at --. Pressing it repeatedly it stays at -- until I release it and it goes from F1 to the first again (F2.8) very quickly. I can still set the camera to whatever F smaller than 2.8 I wish, of course, but I seem unable to cycle between the four settings of the adapter. Still, it is the first M42 adapter I've had that allows infinity focus :) |
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Sol 1
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Gianluke
Newbie
Joined: 09 December 2011 Country: Italy Location: Naples Status: Offline Posts: 23 |
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Posted: 09 February 2012 at 23:41 |
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Hello. Does anyone known this adapter?
http://www.ebay.com/itm/AF-Confirm-M42-Sony-Alpha-Adapter-A200-EXIF-edit-/110744902920?pt=LH_DefaultDomain_0&hash=item19c8e91d08 It looks well made, with edit chip. |
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SONY Alpha 850 - ZEISS: Vario Sonnar ZA AF 16-35/2.8 - Planar MM 50/1.7 - Planar ZA AF 85/1.4 - Sonnar ZA AF 135/1.8 - MINOLTA: AF 200/2.8 APO - TC 1.4x I - AF 28-135/4-4.5 - AF 35-105 (I)/3.5-4.5
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Jocelynne
Senior Member
Joined: 17 June 2009 Location: United States Status: Online Posts: 1700 |
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Posted: 09 February 2012 at 23:52 |
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@Gianluke: No, I have not heard of this product. It appears interesting. Let us know more, please.
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Maxxum 450si, Sony A300, A700, A900 and a cubic meter of Alpha lenses
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Gianluke
Newbie
Joined: 09 December 2011 Country: Italy Location: Naples Status: Offline Posts: 23 |
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Posted: 10 February 2012 at 01:09 |
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It costs 22 $ shipped against 61 $ di James Lao.
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SONY Alpha 850 - ZEISS: Vario Sonnar ZA AF 16-35/2.8 - Planar MM 50/1.7 - Planar ZA AF 85/1.4 - Sonnar ZA AF 135/1.8 - MINOLTA: AF 200/2.8 APO - TC 1.4x I - AF 28-135/4-4.5 - AF 35-105 (I)/3.5-4.5
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Peekayoh
Senior Member
Joined: 19 January 2009 Location: United Kingdom Status: Offline Posts: 1277 |
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Posted: 10 February 2012 at 10:02 |
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That is the big_is adapter and works just fine.
Cheaper from big-is. |
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Shrek wrote:
 > Forum Home > Equipment forums > Lens Talk > M42 and adapted lenses
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