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tkbslc
Joined: 02 Jul 2009
Posts: 194
Location: Utah, USA
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 Posted: Tue Oct 13, 2009 4:42 am Post subject: AF confirm adapters really work? |
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tkbslc wrote:
I have been told by a few people that AF confirm adapters are inaccurate and harmful to use on your camera. Others say they help focus quite a bit. Right now I use cheap chipless adapters. Would it be worth getting a chipped adapter? I still struggle with my hit rate on my faster lenses.
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patrickh
Joined: 23 Aug 2007
Posts: 8551
Location: Oregon
Expire: 2011-11-18
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| Posted: Tue Oct 13, 2009 5:46 am Post subject: |
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patrickh wrote:
I find them "spotty" - although on the whole I would rather have one than not. On the Canon the problem really comes if you are using the chip for exposure as well, and that is definitely inaccurate.
patrickh
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M42: Vivitar 28/2.5, Tamron 28/2.5, Formula5 28/2.8, Mamiya 28/2.8, Pentacon 29/2.8, Flektogon 35/2.4, Flektogon 35/2.8, Takumar 35/3.5, Curtagon 35/4, Takumar 50/1.4, Volna-6 50/2.8 macro, Mamiya 50/1.4, CZJ Pancolar 50/1,8, Oreston 50/1.8, Takumar 50/2, Industar 50/3.5, Sears 55/1.4, Helios 58/2, Jupiter 85/2, Helios 85/1.5, Takumar 105/2.8, Steinheil macro 105/4.5, Tamron 135/2.5, Jupiter 135/4, CZ 135/4, Steinheil Culminar 135/4,5, Jupiter 135/3.5, Takumar 135/3.5, Tair 135/2.8, Pentacon 135/2.8, CZ 135/2.8, Taika 135/3.5, Takumar 150/4, Jupiter 200/4, Takumar 200/4
Exakta: Topcon 100/2.8(M42), 35/2.8, 58/1.8, 135/2.8, 135/2.8 (M42), Kyoei Acall 135/3.5
C/Y: Yashica 28/2.8, 50/1.7, 135/2.8, Zeiss Planar 50/1.4, Distagon 25/2.8
Hexanon: 28/3.5, 35/2.8, 40/1.8, 50/1.7, 52/1.8, 135/3.2, 135/3.5, 35-70/3.5, 200/3.5
P6 : Mir 38 65/3.5, Biometar 80/2.8, Kaleinar 150/2.8, Sonnar 180/2.8
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RF: Industar 53/2.8, Jupiter 8 50/2
Enlarg: Rodagon 50/5,6, 80/5,6, 105/5.6, Vario 44-52/4, 150/5.6 180/5.6 El Nikkor 50/2,8,63/2.8,75/4, 80/5,6, 105/5.6, 135/5.6 Schneider 60/5.6, 80/5.6, 80/4S,100/5.6S,105/5.6,135/5.6, 135/5.6S, 150/5.6S, Leica 95/4 |
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darosk
Joined: 09 Apr 2009
Posts: 120
Location: Kota Kinabalu
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| Posted: Tue Oct 13, 2009 5:58 am Post subject: |
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darosk wrote:
I tried chip adapter for a long time, bought a few different types (mine were m42-canon adapters) from different sellers. In general they didn't really help - I found that with the fast glass, the adapters were making me front-focus more often for some strange reason.
Now I just use the plain metal no chip adapter, use focusing screen, and practice, practice, practice! Practice make my hit rate heighter and train your eye better. Even with new DSLR with smaller viewfinder, it possible to train eye to see focus snap better.
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my_photography
Joined: 03 Nov 2008
Posts: 2772
Location: Pearl of the Orient
Expire: 2016-12-25
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| Posted: Tue Oct 13, 2009 7:18 am Post subject: Re: AF confirm adapters really work? |
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my_photography wrote:
| tkbslc wrote: |
| I have been told by a few people that AF confirm adapters are inaccurate and harmful to use on your camera. |
At times it might not be accurate as it is designed to work within a certain range - tolerance. What do you mean by harmful to the camera? I have not hear nor read about this.
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Other Germany: Meyer Primoplan 50/1.8, Meyer Trioplan 100/2.8
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Russian: Zenith 16/2.8, Mir-24M 2/35, Volna-9 50/2.8, Helios 44M (58/2), Helios 44M-3 MC (58/2), Helios 40 (85/1.5), Tair 11A (135/2.8 )
Others: Sears 28/2.8, Sankor 35/2.8, Enna M�nchen Tele-Ennalyt 135/3.5
Zoom Sigma Zoom 28-85/3.5-4.5
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koji
Joined: 21 Jul 2008
Posts: 2107
Location: Hiroshima, Japan
Expire: 2012-12-27
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| Posted: Tue Oct 13, 2009 7:30 am Post subject: |
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koji wrote:
The benefit comes from exposure accuracy at least you do not have to
worry about EC all the time. Focus accuracy is iffy, if you have good eyes
and a good focusing screen, this is far better.
EC = Exposure Compensation
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martinsmith99
Joined: 31 Aug 2008
Posts: 6950
Location: S Glos, UK
Expire: 2013-11-18
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| Posted: Wed Oct 14, 2009 7:45 pm Post subject: |
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martinsmith99 wrote:
Marginally helpful. No harm to my camera at present.
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tikiman
Joined: 12 Oct 2009
Posts: 14
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| Posted: Thu Oct 15, 2009 12:06 pm Post subject: |
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tikiman wrote:
I got one of those programmable dandelion chip, and I use it my canon 1KD.
Every time I take a shot, i keep looking out for the little red dot flicking on my view-finder and that light beep sound. I realize that I have mentally lost focus on taking my subject. 
IMO, the AF chip is a tool that assist us get close to sharp focusing. We still have to train our eyes to look through that little view-hole, and not to loose track of the subject.
Constraints are that it work ok with manual aperture setting of >F5.6, and need to compensate for over-exposure. Good if u are taking (bokeh) portraits.
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LucisPictor
Joined: 26 Feb 2007
Posts: 17633
Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
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| Posted: Thu Oct 15, 2009 2:21 pm Post subject: |
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LucisPictor wrote:
| martinsmith99 wrote: |
| Marginally helpful. No harm to my camera at present. |
I am not sure about that in every case.
I have got (or rather "had", I have thrown it away) an adapter that caused a very high pitched sound in my EOS 350D. That did not sound good and I was afraid of destroying something. So I've never used it again.
And I often have the case that an AF adapter causes an ERR99 or ERR01.
I hardly use them nowadays...
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nemesis101
Joined: 25 Mar 2008
Posts: 2050
Location: Oregon USA
Expire: 2015-01-22
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| Posted: Thu Oct 15, 2009 7:27 pm Post subject: |
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nemesis101 wrote:
Get a Panasonic L1 - it has focus confirm built in on any lens - no need to use a 'chipped' adapter - and exposure is pretty accurate too..
Doug
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LucisPictor
Joined: 26 Feb 2007
Posts: 17633
Location: Oberhessen, Germany / Maidstone ('95-'96)
Expire: 2013-12-03
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| Posted: Thu Oct 15, 2009 9:15 pm Post subject: |
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LucisPictor wrote:
| nemesis101 wrote: |
Get a Panasonic L1 - it has focus confirm built in on any lens - no need to use a 'chipped' adapter - and exposure is pretty accurate too..
Doug |
And it's a nice and good looking cam.
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nemesis101
Joined: 25 Mar 2008
Posts: 2050
Location: Oregon USA
Expire: 2015-01-22
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| Posted: Thu Oct 15, 2009 11:06 pm Post subject: |
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nemesis101 wrote:
It is indeed... and the standard 'kit' Vario-Elmar is no slouch for an AF lens either! Only sad thing is the rather dim viewfinder.. but I LOVE mine!
Doug
| LucisPictor wrote: |
| nemesis101 wrote: |
Get a Panasonic L1 - it has focus confirm built in on any lens - no need to use a 'chipped' adapter - and exposure is pretty accurate too..
Doug |
And it's a nice and good looking cam. |
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Masters worry about light. |
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larsr
Joined: 25 Jun 2009
Posts: 272
Location: Helsinki, Finland
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| Posted: Thu Oct 22, 2009 6:08 am Post subject: |
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larsr wrote:
| tkbslc wrote: |
I have been told by a few people that AF confirm adapters are inaccurate and harmful to use on your camera.
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| LucisPictor wrote: |
And I often have the case that an AF adapter causes an ERR99 or ERR01.
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Some people seem to have had problems while others don't, and this might be a case of a cheap/bad AF-confirm adapter sample, but as with LucisPictor's case, similar horror stories have been documented:
http://reviews.ebay.com/CAUTION-AF-Confirm-Nikon-Adapter-for-EOS-cameras_W0QQugidZ10000000002548592
I have understood that Canon cameras disable both visual and audible focus confirm if it sees a broken lens circuit. Nikon cameras lose the audio but still see visual since it is the sensor seeing the light and not the AF chip :)
Personally, I don't trust the confirm audio or visual anyway, since even with misaligned AF lenses the focus might be off and the camera would still fool you into thinking you've got it right - and only afterwards on your computer you would notice if's way off or back/front-focused. With my M42 lenses and the D80 body it's even more way off, so I just concentrate my eye and learn how each lens behaves with the trial&error way.
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Bodies:
DSLR: Nikon D200
SLR: Nikon FA, Pentax Spotmatic SPII, Zeiss Ikon Icarex 35TM
35mm: Voigtl�nder Vitoret
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M42
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Fretless Pete
Joined: 12 Oct 2009
Posts: 171
Location: UK
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| Posted: Fri Oct 30, 2009 2:16 am Post subject: |
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Fretless Pete wrote:
I'm an AF confirm adapter user. I have 3 and they're also the new programmable type.
I've had no problems with mine. A sample from my Tamron Adaptall SP 90mm macro - a superb lens by the way. In this shot, i had a 2x TC on as well.
Its the centre of a UK £2 coin
http://photo-sharing.winsoftmagic.com/cgi-bin/share.exe?CMD=FP&ID1=spny0jaj&PID=0y0d8v3g&FID=lzrymns4zt |
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CBokeh
Joined: 15 Oct 2009
Posts: 147
Location: Southern California
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| Posted: Sat Oct 31, 2009 4:22 pm Post subject: |
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CBokeh wrote:
Pete, where did you buy your adapters? If from ebay, which vendor? |
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Fretless Pete
Joined: 12 Oct 2009
Posts: 171
Location: UK
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| Posted: Sat Oct 31, 2009 6:14 pm Post subject: |
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Fretless Pete wrote:
I got mine from big_is , good chap, no probs with this seller at all. Takes a while to get here from HK though, about 15 days.
I've now bought 3 off him without a hitch
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