Adapter for old lens

bhundt

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ziggy53

If it is a "universal" screw mount lens, you want an M42/EOS adapter or a screwmount/EOS adapter.

Adorama has a simple adapter that I use:

http://www.adorama.com/Als/ProductPage/CZPUEOS.html

I did add an AF confirmation chip to improve focus accuracy. (It's about impossible to manually focus with a modern dSLR viewfinder and standard matte screen.)

I also have an adapter that I purchased from EBay that came with the confirmation chip installed. I no longer have that vendor's information, but you should be able to search EBay to find something similar.

This seems very similar to what I have:

http://cgi.ebay.com/AF-Confirm-M42-Lens-Canon-EOS-5D-40D-500D-Adapter-/220512112441?cmd=ViewItem&pt=Lens_Accessories&hash=item33578bcf39#ht_2202wt_912

bhundt

Thanks! I new there had to be a solution.

ziggy53

It appears that Spiratone also made a "T-Mount" version of some of the 500mm mirror lenses (also 42mm thread but a different thread pitch so not interchangeable with the M42/universal screw mount). Do you know for sure which type of mount it is?

bhundt

The mount says T-CAF

ziggy53

bhundt wrote: »

The mount says T-CAF

I am suspicious that it may be a T-Mount lens. Call your local camera shop and see if they have a T-Mount adapter of any kind. If the lens threads fit the T-Mount adapter then you should get an adapter to go from T-Mount to M42/universal, and then get one of the adapters I previously mentioned above, preferably one with a focus assist chip). You could also get a T-Mount to EOS adapter, but I have not seen one with the focus assist chip.

If a T-Mount adapter does not fit, then it is likely just an M42/universal thread so you just need the one adapter.

If you could get some close-up photos of the back of the lens and the adapter that might help in identification.

Jane B.

ziggy53 wrote: »

I am suspicious that it may be a T-Mount lens. Call your local camera shop and see if they have a T-Mount adapter of any kind. If the lens threads fit the T-Mount adapter then you should get an adapter to go from T-Mount to M42/universal, and then get one of the adapters I previously mentioned above, preferably one with a focus assist chip). You could also get a T-Mount to EOS adapter, but I have not seen one with the focus assist chip.

If a T-Mount adapter does not fit, then it is likely just an M42/universal thread so you just need the one adapter.

If you could get some close-up photos of the back of the lens and the adapter that might help in identification.

I know it is a different brand but I what the box calls a Vivitar Basic Telephoto Lens: 200mm F3.5 from the CompatibleTSystem. I slip with it refers to it having a T adapter and lens mount T-1. This was originally used on an SLR that takes M42 mount lenses. I have used it with a simple M42 to EOS adapter on both my EOS 620 film camera and my D60 digital.

So if the brand referred to above is anything like the brand that I have it could be kind of a hibrid that just needs the M42 to EOS adapter at this point. If I was buying now I think I would want the confirmation chip.

Jane B.

bhundt

I ordered the M42 to EOS adapter with the confirmation chip.
Thanks