Edit (9/15/2011): I’ve published the Design Steps for CP30T-EOS which also uses one of these T-rings.
Edit (9/09/2011): I made a second batch of T-rings as I was running low. If you need one, chances are I still have stock, just send me an email.
Edit (7/26/2011): The hybrid cooler CP50X-EOS also uses one of these T-rings. It gives the frame the mechanical strength it needs to hold the weight of the hot plate heat sink and its fans with no problem.
Edit (7/6/2011): I have made a small CNC run of these T-rings – if you were one of those interested, scroll down!
This custom T-ring is made of Aluminum and finished with Type-2 black-anodized. It is externally longer than usual T-rings for the purpose of clearing the flash nose (which usually interfere with front panels when used with a traditional T-ring).
It fits my T1i very well, the camera pin clicks-in with no play.
It also features four threaded holes on the top to be fastened to cooler front panels.
The main inner diameter is large enough to fit most T-adapters.
As you can see on the picture above, I use an Astronomy Technologies T-adapter which fit with at least 3-4 mm clearance all around. Internally it is not longer than a standard T-ring and will not cause additional vignetting.
If you are interested in building your own DSLR cooler and need to clear your camera flash,
Or if you just need mounting holes on your T-ring to fit your DSLR cooler,
Then one of these T-rings might be solution. I was approached by a few people who asked me if I could make more of this custom T-ring. So I was able to make a small production run of these custom Canon DSLR T-rings that are now available for $49 plus shipping (price reduced on 10/18/2011). Just email me: mounioloux at yahoo dot com.
- The schematics on the right shows the threaded holes pattern and dimensions: M3 x 66 mm square (x 4).
- It comes with a set of four M3 x 10 mm socket cap screws.
- You can use these or any M3 screws to fasten the T-ring on your own DSLR cooler box.
- T-rings are CNC machined out of Aluminum.
- Finish is black anodize (Type-2).
- They feature the universal T-thread which is retained by the usual three set screws.