Souped up Canon T Mount

[The Thing]

For those not on the DSLR Modification Yahoo Group, some geezer has made a Canon T-Mount adaptor which gets rid of the slop in the standard ones for $40. www.wa-chur-ed.com has details.

[JonH]

Thats a lot of money for not a lot, all he has done is add 3 tapped holes and swap the grub screws for a thumb screw on a standard adaptor.

So thats about £20 for 15 mins work on a mill, 3 grub screws and a thumb screw....  

[The Thing]

I never said it was worth it. I use a bungee cord to tension the camera to t-mount interface to prevent movement. Works for nowt!

[mickw]

The idea is a good one and the price isn't that bad if your only tools are a hammer, screwdriver and bottle opener 

Still prefer Duncans bungee though 

[JonH]

If it works then for sure it's a good idea, my adaptor has loads of slop in it.
Looking at what he has done though it's not exactly the obvious solution and could be done in a far simpler fashion.

[MarkS]

What slop are we talking about here?

I've never had slop in a T-mount adaptor so I don't really understand the problem this apparently solves.

[JonH]

What slop are we talking about here?

I've never had slop in a T-mount adaptor so I don't really understand the problem this apparently solves.

Where the T-mount clips on to the camera, it has a tendency to 'wobble' a little.

[MarkS]

Where the T-mount clips on to the camera, it has a tendency to 'wobble' a little.

I see.  You're saying there's often slack to allow the camera body to "rock" slightly against the T-ring.  Luckily I've never had that happen.

[Carole]

What slop are we talking about here?

I've never had slop in a T-mount adaptor so I don't really understand the problem this apparently solves.

ditto, I have never had a problem either.

Carole

[The Thing]

What slop are we talking about here?

I've never had slop in a T-mount adaptor so I don't really understand the problem this apparently solves.

It the way the little pin doesn't engage snugly so the camera can rotate a few pixels relative to the OTA and also the flanges don't hold the camera very tightly so there is a little lateral play. I have two adaptors, one Japanese, one Chinese and the both exhibit these traits to differing degrees. If the camera body moves during an exposure it will show.