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ZWO EOS T2 Adapter

Posted: Tue Aug 13, 2019 11:38 pm
by JayS_CT
Sean,

I'm somewhat frustrated by the current design on the EOS - T2 lens adapter. The release pin feels like can break at any moment when trying to release the lens. In addition, the 4 screws holding and adjusting tilt are not uniform from lens to lens. Some lens go in totally smoothing, while others are virtually impossible to get on the adapter. There seems to be no consistency. I'm past the return date at High Point, but this really has been very frustrating as I mentioned. There seems to be no "guide" as to how much is too tight or too loose, or how to calibrate so we know there is no tilt being introduced. Really could use some help all around.. :-(

Thanks in advance..
Jay S.

Re: ZWO EOS T2 Adapter

Posted: Fri Aug 16, 2019 2:05 pm
by Katherine.Tsai
Hi Jay,
Do you mean that you are using one EOS-T2 adapter with different lens ans some of them are not smoothly compatible?

Re: ZWO EOS T2 Adapter

Posted: Thu Sep 12, 2019 3:31 am
by JayS_CT
Sorry for the long delay.. Yes.. The adapter does not "adapt" (no pun intended) to all lenses the same. Some are impossibly tight, some go right on. We're not talking about inexpensive lenses and it happens with lenses of the same brand, be that Canon or Sigma. For example, Sigma 35 ART 1.4 goes right on, and the 50 ART 1.4 is almost locked on tight. Add to that the very flimsy release mechanism. Not what I expected. :-(

Jay S.

Re: ZWO EOS T2 Adapter

Posted: Tue Sep 17, 2019 8:52 am
by Katherine.Tsai
Sorry about this, Jay S.
It seems like the size of the lens are different.

Re: ZWO EOS T2 Adapter

Posted: Tue Sep 17, 2019 5:08 pm
by JayS_CT
Katherine,

On the side that they connect to the adapter, they're not different in size. Think about your reply. You're saying that somehow the adapter is tied to "specific" sizes of a standardized Canon mount?? ALL Canon mount lenses are exactly the same or they wouldn't mount to a DSLR. It is the adapter that is apparently not uniform (or standard) when handling different lenses. As I said, I've found that by tightening or loosening the 4 small screws, it will accept (or reject) the mounting of different lenses. It should be that way. In addition, the release button (again as I mentioned) feels like it could break off if too much pressure is applied. It seems I've got a very poorly made one, or the design is faulty.

Jay S.

Re: ZWO EOS T2 Adapter

Posted: Wed Sep 18, 2019 6:35 am
by Katherine.Tsai
Sorry that I did not understand before.
Can you send me the pictures of your adapter?
I would like to see which version of EOS adapter you have.
Please show us the two side of the adapter.

Re: ZWO EOS T2 Adapter

Posted: Wed Sep 18, 2019 1:41 pm
by JayS_CT
Katherine,

Purchased at Highpoint Scientific. It is the one with the added 5mm spacer.
IMG_0502.jpg
IMG_0500.jpg
IMG_0501.jpg

Re: ZWO EOS T2 Adapter

Posted: Thu Sep 19, 2019 8:11 am
by Katherine.Tsai
Thank you for the pictures, we are making new adapters and we will improve this, would you like to be our tester if the new adpaters come out?

Re: ZWO EOS T2 Adapter

Posted: Thu Sep 19, 2019 12:46 pm
by JayS_CT
Katherine,

Yes. I use lenses as much as I do telescopes for imaging. Do you have an anticipated time for an updated version? If I can make a suggestion? PLEASE fix the release mechanism to mimic the way camera manufacturers use to release a lens from a DSLR. Obviously it cannot be an exact duplicate of that function, but has has to be more sturdy than the current implementation.

If you would like, since I am a commercial photographer, I would be more than glad to work with whomever is working on the new design. It is cheaper to correct things before implementation than after.

Again, is there some time frame we're talking about. My contact information is as follows:

Jay Sottolano
Email: jaysott@gmail.com
Mobile: 860 916 3121
Home: 860 651 0096

I also participate in SkyWatcher USA's Ambassador program for the northeast area and do a lot of outreach events.

Re: ZWO EOS T2 Adapter

Posted: Fri Sep 20, 2019 5:54 am
by Katherine.Tsai
Hi JayS,
Thank you very much for the suggestion, I will convey your message to the developers.
If you will, we can contact via emails.:)