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exakta to eos adapter, plus lenses
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PostPosted: Sun Feb 03, 2013 7:16 pm    Post subject: exakta to eos adapter, plus lenses Reply with quote
I recently purchased an Exakta to Canon eos adapter.
link here:http://www.ebay.com/itm/120931329370?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

I also bought some Exakta mount lens as a(hopefully) less expensive alternative to M42 mount lenses.
I got a Flektagon 2.8/35 lens $33, a Sonnar 4/135 $47, and a Pentacon 2.8/100 $20.
I removed the arm from the Flektagon. The Flektagon's focus was very stiff. It hasn't been used for ten years.
If anyone can tell me how to test these to see if they reach infinity that would be appreciated.
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Here are a few quickly taken photos.
Flektagon
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[/url
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[url=http://forum.mflenses.com/userpix/20159/big_5988_flektagon_35_10_1.jpg]
Pentacon
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Sonnar
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Last edited by uddhava on Tue Sep 15, 2015 7:34 pm; edited 1 time in total


PostPosted: Sun Feb 03, 2013 8:30 pm    Post subject: Reply with quote
Every shot looks soft to me.


PostPosted: Sun Feb 03, 2013 8:33 pm    Post subject: Re: exakta to eos adapter, plus lenses Reply with quote
uddhava wrote:
If anyone can tell me how to test these to see if they reach infinity that would be appreciated.


Set up on a tripod, turn on Live View, enlarge the view to the max, open the aperture all the way, and try to focus on a far away object.

For my Flek 35/2.8 infinity is only a dozen or so meters. From your samples it looks OK, i.e. the roofs of the far away houses look fine. A 35 mm lens at f/8 has a gigantic DoF and will be pretty forgiving.

The Sonnar will be more demanding if infinity isn't quite perfect. On the other hand you're less likely to want infinity on a 135mm.

That's some nice glass, enjoy!


PostPosted: Sun Feb 03, 2013 8:48 pm    Post subject: Reply with quote
martinsmith99 wrote:
Every shot looks soft to me.


Thanks,....well back to the old drawing board. I'll try to take some better shots. Perhaps too wide open. The sun was coming in and out
from the clouds.

Last edited by uddhava on Sun Feb 03, 2013 8:53 pm; edited 1 time in total


PostPosted: Sun Feb 03, 2013 8:50 pm    Post subject: Re: exakta to eos adapter, plus lenses Reply with quote
fuzzywuzzy wrote:
uddhava wrote:
If anyone can tell me how to test these to see if they reach infinity that would be appreciated.


Set up on a tripod, turn on Live View, enlarge the view to the max, open the aperture all the way, and try to focus on a far away object.

For my Flek 35/2.8 infinity is only a dozen or so meters. From your samples it looks OK, i.e. the roofs of the far away houses look fine. A 35 mm lens at f/8 has a gigantic DoF and will be pretty forgiving.

The Sonnar will be more demanding if infinity isn't quite perfect. On the other hand you're less likely to want infinity on a 135mm.

That's some nice glass, enjoy!


Okay, thanks for the tip. I am happy to have these lenses, I hope i can do them justice.


PostPosted: Mon Feb 04, 2013 3:27 pm    Post subject: Reply with quote
Another question I have...
I removed the arm from the Flektagon in order to use it with the adapter. Now there is a hole where the arm used to go. Does anyone have any idea or experience for fixing it (covering the hole)?


PostPosted: Mon Feb 04, 2013 5:10 pm    Post subject: Reply with quote
A bendable thin black plastic cut and then a lighter to soften it(use caution here), shape it to fit then epoxy it on.


PostPosted: Mon Feb 04, 2013 5:30 pm    Post subject: Reply with quote
Lightshow wrote:
A bendable thin black plastic cut and then a lighter to soften it(use caution here), shape it to fit then epoxy it on.


Thanks. I have some thin cylinder shaped aluminum containers around. Do you thing if I sawed off a piece of that I could glue it on?
Could that also be a solution?
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