exakta mount lense -> adapter to nikon?

sandrophoto · Joined: 21 Sep 2010 Posts: 10

Is it possible to adapt exakta lenses to nikon dslrs? like d3000? without any problems like mirror hitting or loosing infinity.

thx!

sandrophoto · Joined: 21 Sep 2010 Posts: 10

I'm interested in personal experience, any help appreciated!

calvin83 · Joined: 12 Apr 2009 Posts: 7584 Location: Hong Kong

sandrophoto · Joined: 21 Sep 2010 Posts: 10

I see, what about canon? are there any adapters for canon that retain infinity focus? or pentax, or any other DSLR?

sandrophoto · Joined: 21 Sep 2010 Posts: 10

I'm particularly afraid, to test it on my canon 50D, will mirror hit the barrel of the lens? I don't want to break expensive camera for few old lenses (gems but still).

RioRico · Posted: Wed Sep 22, 2010 10:10 am Post subject:

Registrations:

Canon EOS: 44mm
Exakta: 44.7mm
Pentax: 45.46mm
Nikon F: 46.5mm

I am not familiar with EOS adapters. Those worried about mirror impact should measure their EOS and Exakta lenses, see how much protrudes beyond the mount base. Or obtain a junked EOS film camera and test on that, where you don't care about further damage.

I am able to press-fit unmodified Nikon F lenses onto my Pentax bodies. The 1mm difference doesn't affect infinity focus. This is not a secure fit. To use Exakta lenses on Nikon bodies and reach infinity, you would either need an optical adapter (losing IQ) or to destructively modify the lens.

I should be able to reach infinity with Exakta lenses on my Pentax bodies by shaving ~2mm from an M39-M42/M42-PK adapter pair, when the lens has a thin base. A wider-base lens would require destructive surgery. To use an Exakta lens on a Nikon body requires either an optical adapter or lens surgery. I don't know if an M39-M42/M42-Nikon adapter pair could survive shaving away 3mm.
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _

While we're talking adapters, let me plug my paltry eBay sales. My ID is r*m and I just listed T-mount adapters for FD and OM lenses, and a Nikon-Konika K/AR adapter. I start all adapter sales at US$0.05, yes, that's five cents, one fat nickel.

Hmmm, I forgot to post an what I think is an Exakta T-mount adapter, marked KE. That will be in my next listings. And maybe a Nikon-Adaptall mount. And I certainly don't need the M42-Praktica bayonet adapter, nor the two T-mount adapters for Minolta MC-MD. I'll list some fine MC glass in a few days, and those adapters will be with the lenses. Is anyone here interested in minty MC glass?

sandrophoto · Joined: 21 Sep 2010 Posts: 10

so it seems I'm out of options?

I've to buy a new camera, which system would u recommend to go with exakta optics?

I found allot of 4/3 adapters for them... is that feasible?

sandrophoto · Joined: 21 Sep 2010 Posts: 10

Do you know registration distance for oly 4/3 cameras? I saw allot of adapters for that.

viniciuspedrozo · Joined: 17 Apr 2009 Posts: 19 Location: Brazil

Easy my friend!

I remove focus part of lens and install the optic part inside the macro tube! Yeah! I Use Soft cover to slide lens to get focus and block bad light.

koji · Expire: 2012-12-27

vargfar · Joined: 23 Jun 2011 Posts: 1 Location: Sweden

Try to fix an Topcor lens f 58mm 1:1,8 to fit my Nikon D3100 body.
Not an easy task,ordered adapter for m39(LTM) to Nikon F mount, and some tricky measurment to do.
There is a diff of 1.8 mm. closer for the register range between Exakta to Nikon.
Well yes, waiting for adapter and then fine works with tools, if I found the infinty point... Rolling Eyes

vargfar

Attila · Expire: 2025-11-18

Welcome vargfar!

I did start as Nikon user with a Nikon D50, I had interest to use other lenses on D50 than Nikon made once hence low price. Most lenses require custom modifications and DIY mod = ruin lens. I did quit and bought an Olympus E-1 due much more compatible with other systems. .... and mirror less cameras did come like m4/3 a second hand m4/3 body price affordable by every one ~ 200-250 USD and almost any lens mountable on it. Modify a lens pretty silly solution vs use a mirror less body.

patrickh · Expire: 2011-11-18

Nikon actually made a nikon/exakta adapter, part of a brief technical flirtation I believe. It does NOT provide infinity focus. I use mine to adapt an exakta Novoflex bellows to my Nikon.

patrickh