Page 1 of 1

What b&l model is this?

Posted: Mon Jun 15, 2020 8:22 pm
by Scarodactyl
I've seen these around, and even bought one--it's misaligned but beautiful so it sits on my mantel.
Image
It's a simple 160mm setup, and it came with Zeiss objectives and eyepieces on it which worked nicely (Aside from the misalignment).

Re: What b&l model is this?

Posted: Mon Jun 15, 2020 8:24 pm
by BramHuntingNematodes
Why, it's a series T Dynoptic. I know a little about that scope.

Re: What b&l model is this?

Posted: Mon Jun 15, 2020 8:27 pm
by Scarodactyl
I thought it was probably a dyn-something, but it is hard to tell.
Darn shame mine is misaligned. I'm not sure how I'd go about opening it up, and maybe someday I will but for now I'm happy with it as a display piece.

Re: What b&l model is this?

Posted: Mon Jun 15, 2020 8:36 pm
by BramHuntingNematodes
I have done it before. It was pretty straightforward, and the binocular optics all came out through the top. I don't remember how the alignment was performed, but I have just aligned a badly misaligned Dynazoom from about 15 years after this one and it was simplicity itself. There were three spring-loaded star-drive screws for each eye, and you could adjust them bit by bit until the two images matched. It took about 20 minutes.

Re: What b&l model is this?

Posted: Mon Jun 15, 2020 8:47 pm
by BramHuntingNematodes
Scarodactyl wrote:
Mon Jun 15, 2020 8:27 pm
I'm happy with it as a display piece.
I have also heard it described as a "pigeon-breasted" Dynoptic, which I think is perfect.

Re: What b&l model is this?

Posted: Mon Jun 15, 2020 9:39 pm
by perrywespa
I just got one of these given to me! It's missing objectives and the mirror but I'm looking forward to trying to put into service. Beautiful instrument.

Re: What b&l model is this?

Posted: Mon Jun 15, 2020 10:01 pm
by BramHuntingNematodes
My advice would be that if you ever see a 20x Apochromat for it snap it up and then get some compens eyepieces it's the sharpest I've ever seen.

Re: What b&l model is this?

Posted: Thu Jun 18, 2020 3:22 pm
by Element 56
When you say misaligned are you referring to the binocular collimation? If so this article may be helpful.

https://www.scribd.com/doc/126976427/A- ... ollimation


Best Regards,
KIrby

Re: What b&l model is this?

Posted: Wed Jul 08, 2020 12:11 pm
by Radazz
I have several of these in my collection.
One of them has gotten condensation in that splitter chamber.
When this happens, it becomes the perfect environment for mold.
That one has green between the elements of the bottom prism.
The 16033 stand introduced in the 1950s are the best IMHO.
Radazz

Re: What b&l model is this?

Posted: Thu Jul 09, 2020 2:48 am
by Radazz
Now that you mention it, one was out of alignment (cross-eyed).
I opened the top, and it was obvious how the one prism had moved in the mount.
Easy fix. Changing the bottom prism is a bear, though.
Radazz