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NX mini with Computar TEC-55 55mm f/2.8 Telecentric Macro Lens

Started Feb 1, 2022 | Discussions
Abbazz
Abbazz Senior Member • Posts: 1,339
NX mini with Computar TEC-55 55mm f/2.8 Telecentric Macro Lens
5

The Computar TEC-55 55mm f/2.8 Telecentric Macro Lens is a lens designed for machine vision. It is available in C-Mount and can be used on an Mx mini with a suitable adapter. In fact its image circle even covers a Micro 4/3 sensor at close range but gives dark corners on APC-C.

Here's the MX mini with the TEC-55 lens at full extension:

When used at infinity, the lens delivers good results but it's not very easy to use with its manual focusing and very long focus throw:

When used at its maximum magnification, it provides a ratio of approximately 1:2, which allows for quite spectacular close-up images on such a small sensor.

Here are a few images taken with this combo:

Cheers!

Abbazz

Samsung NX mini
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hunkreborn
hunkreborn Junior Member • Posts: 27
Re: NX mini with Computar TEC-55 55mm f/2.8 Telecentric Macro Lens

Nice!

I have a couple of NX Mini's in my collection, I'll try a couple of lens mods. Funny thing about it is the lens detection is easily bypassed by shorting 2 pins in the mount.

Of topic: I'm working on a hotshoe mount mod, do you think it's worth it to make a guide? It's required to the inbody flash lamp and some of its circuit and modify the plastic body a bit, I'm not really sure if it's really worth for everyone. I'm bringing this to your topic because I was imagining the macro possibilities using a ring flash with it. An easier workaround would be simply to use a photocell and fire the inbody flash, nevertheless, it's always nice to have more than one option, right?

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Fast hands. Sharp eyes. Manual focus.

 hunkreborn's gear list:hunkreborn's gear list
Sony Alpha DSLR-A200 Sony Alpha NEX-7 Sony SLT-A77 Samsung NX2000 Samsung NX30 +17 more
Abbazz
OP Abbazz Senior Member • Posts: 1,339
Re: NX mini with Computar TEC-55 55mm f/2.8 Telecentric Macro Lens

hunkreborn wrote:

Nice!

Thank you.

I have a couple of NX Mini's in my collection, I'll try a couple of lens mods. Funny thing about it is the lens detection is easily bypassed by shorting 2 pins in the mount.

Yes. Adapters for lenses in other mounts need to do that otherwise they cannot be used on the NX mini.

Of topic: I'm working on a hotshoe mount mod, do you think it's worth it to make a guide? It's required to the inbody flash lamp and some of its circuit and modify the plastic body a bit, I'm not really sure if it's really worth for everyone. I'm bringing this to your topic because I was imagining the macro possibilities using a ring flash with it. An easier workaround would be simply to use a photocell and fire the inbody flash, nevertheless, it's always nice to have more than one option, right?

Sorry but I almost never use flash so I guess I won't be of any help regarding this matter.

Cheers!

Abbazz

hunkreborn
hunkreborn Junior Member • Posts: 27
Re: NX mini with Computar TEC-55 55mm f/2.8 Telecentric Macro Lens

Abbazz wrote:

hunkreborn wrote:

Nice!

Thank you.

I have a couple of NX Mini's in my collection, I'll try a couple of lens mods. Funny thing about it is the lens detection is easily bypassed by shorting 2 pins in the mount.

Yes. Adapters for lenses in other mounts need to do that otherwise they cannot be used on the NX mini.

Of topic: I'm working on a hotshoe mount mod, do you think it's worth it to make a guide? It's required to the inbody flash lamp and some of its circuit and modify the plastic body a bit, I'm not really sure if it's really worth for everyone. I'm bringing this to your topic because I was imagining the macro possibilities using a ring flash with it. An easier workaround would be simply to use a photocell and fire the inbody flash, nevertheless, it's always nice to have more than one option, right?

Sorry but I almost never use flash so I guess I won't be of any help regarding this matter.

Cheers!

Abbazz

I think its really not worth to do it in a NX Mini, but I have a second body lying around so.. Why not right?

Still, I think its not very useful for NX Mini shooters, as it main intention is to be a... mini portable body... It kind defeats the purpose. But there are always some exceptions to every rule.

Have a nice weekend my friend!

-- hide signature --

Fast hands. Sharp eyes. Manual focus.

 hunkreborn's gear list:hunkreborn's gear list
Sony Alpha DSLR-A200 Sony Alpha NEX-7 Sony SLT-A77 Samsung NX2000 Samsung NX30 +17 more
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