Adapter to connect Super Lentar f 3.5 35mm lens to Sony a6000(Nex): I bought a Super Lentar f 3.5 35mm lens at a thrift shop for five dollars to fit on my Sony a 6000. I have had very...

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Adapter to connect Super Lentar f 3.5 35mm lens to Sony a6000(Nex)

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Jun 7, 2018 16:36:59 #

dadorphan

I bought a Super Lentar f 3.5 35mm lens at a thrift shop for five dollars to fit on my Sony a 6000. I have had very good luck using K & F Concept adapters. I contacted them and they told me I needed an M42 to Nex adapter which I bought and which did not fit. My own research was that the correct adapter was a T2 to Nex adapter, which I bought, received today, and which also does not fit. The problem appears to be that the adapters and the lens both have threads on the inside of each item.

Does anyone know what the proper adapter would be or whether there is another fitting that could connect the two inside threads and still allow me to use the a6000 manually. I am attaching a photo of the T2 adapter and the Super Lentar lens ( please ignore second picture of lens attached by mistake).

Thank you in advance.

Jun 7, 2018 16:51:56 #

twowindsbear

The lens mounts by the flange on the 'outside' of the lens mount not the threads inside the base of the lens.

Don't know about the adapter you've pictured

Good luck

Jun 7, 2018 16:55:04 #

cyclespeed Loc: Calgary, Alberta Canada

I'm not sure this helps but, I have an adaptor for Pentax ( Takamar ) screw mount lens for my a6000. It cost $30 and is a Fotolax Pk - Nex adaptor. Works very well with all 4 lenses.

Jun 7, 2018 19:04:07 #

dadorphan

Twowindsbear,

Thank you for your response. I believe you are correct, but neither the K&F adapter for an M42 or T2 mount has an “opening” large enough to accommodate the flanges on the Super Lentar lens.

Dadorphan

Jun 7, 2018 19:38:00 #

twowindsbear

You'll need to determine what the lens' camera mount actually is. Perhaps some time with Google may be helpful. Then you can shop for the appropriate adapter. Keep in mind, too, that your lens is designed for a specific lens to film (or sensor) distance and there may not be 'room' for the thickness of an adapter to allow the camera & old lens combination to focus to infinity.

Are there any markings on the lens mount that may hint at the lens' 'heritage?' Is it possible that the mount actually is some sort of adapter that can be removed, to reveal Leica or Pentax or other type threads?

Again, good luck.

Jun 7, 2018 20:59:07 #

dadorphan

Twowindsbear,

Thanks again for the follow up email. I have done extensive Google and eBay research and some of the “hits“ say it is an m42 mount and others a T2 mount. I purchased both, but neither fit. I looked at a photo of my lens and it looks the same, so I don’t think there is anything to remove from my lens to find another mount.

I sent the same two pictures to K&F-the makers of the two adapters I tried - and hopefully will here back soon.

Thanks again.

Dadorphan

Jun 7, 2018 23:33:18 #

RWR Loc: La Mesa, CA

The “internal threads” are merely light-baffling grooves, such as you often see inside lens hoods. Though you didn’t post a front or side view, I suspect it has a preset or strictly stop-down diaphragm. The mount itself looks to me like a Petri bayonet. http://rick_oleson.tripod.com/index-99.html

Jun 8, 2018 00:07:54 #

dadorphan

RWR,

Thanks for your response. My Super Lentar is shown in the attached photos.

Thanks very much.

Dadorphan

Jun 8, 2018 00:25:39 #

RWR Loc: La Mesa, CA

dadorphan wrote:

RWR,

Thanks for your response. My Super Lentar is shown in the attached photos.

Thanks very much.

Dadorphan

Yep, it’s a preset. That explains why there is no diaphragm lever in the mount. Have you checked if a Petri adapter is available for your camera?

Jun 8, 2018 01:16:56 #

dadorphan

RWR,

Thanks so much for taking the time to respond.

What type of Petri mount do you believe my lens has?

Breach lock or bayonet?

Thanks.

Dadorphan

Jun 8, 2018 01:33:02 #

RWR Loc: La Mesa, CA

dadorphan wrote:

RWR,

Thanks so much for taking the time to respond.

What type of Petri mount do you believe my lens has?

Breach lock or bayonet?

Thanks.

Dadorphan

I think it is a bayonet. The picture in the link above looks like a breech mount with the the locking ring on the lens.

Jun 8, 2018 07:46:49 #

RWR Loc: La Mesa, CA

RWR wrote:

I think it is a bayonet. The picture in the link above looks like a breech mount with the the locking ring on the lens.

In looking a little closer this morning I now believe that, if this is indeed for a Petri, it must be a breech mount. I’m obviously not familiar with Petri, hopefully someone who is will help you out here. Good luck!

Jun 8, 2018 09:38:02 #

dadorphan

RWR,

Thanks for all your help.

Dadorphan

Jun 8, 2018 09:58:43 #

RWR Loc: La Mesa, CA

dadorphan wrote:

RWR,

Thanks for all your help.

Dadorphan

What help!?

Even if you found an adapter I doubt the image quality would be much to crow about, but it should be pretty good reversed or stacked on a longer prime for macrophotography. I hope you can get a refund on the adapters you bought.

Jun 8, 2018 10:07:46 #

dadorphan

RWR,

Help=time+effort+knowledge.

Thanks again.

Dadorphan

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