Nagler 17mm type 4 eyecup

[moriniboy]

Need to lock it in position (3 clicks up), does anyone know a good way to do this that does not involve glue.

Thanks

[John]

You can remove the top of the eyepiece and squeeze the metal ring that creates the click stops a bit so it makes the stops a bit firmer. The lower part of the top section unscrews to allow you to do this. On the more recent versions of the T4 there is a ring of soft friction material inside this lower section of the body that also adds a bit of "sticktion" to the click stop movement and I guess you could add to that. I have even heard of folks drilling the upperbody of the eyepiece and adding a nylon set screw to hold it at one point - seems a bit drastic to me !

My radians are the same if it's any consolation - I just remember that two stops down from the top is "my" position.

[NGC 1502]

Need to lock it in position (3 clicks up), does anyone know a good way to do this that does not involve glue.

Thanks

The TeleVue Nagler type 4 and Radian both share the same type of click stop eyeguard.  I've sorted the ones on my Radians, as they were all too slack.  Not a hard job, just a bit fiddly.

Here's how  - http://www.televue.com/engine/TV3b_page.asp?return=Advice&id=100#.UrdpW9JdWr8 

Regards, Ed.

[John]

The TeleVue Nagler type 4 and Radian both share the same type of click stop eyeguard.  I've sorted the ones on my Radians, as they were all too slack.  Not a hard job, just a bit fiddly.

Here's how  - http://www.televue.com/engine/TV3b_page.asp?return=Advice&id=100#.UrdpW9JdWr8 

Regards, Ed.

Thats the instructions that I was trying to give. Tele Vue do it so much better though 

[alan potts]

Thanks for that I will operate on my 3mm it is terrible for this problem.

Alan

[Joves]

Ed, that is BRILLIANT! My 4mm Radian extends under its own weight, so this is exactly what I need. I was thinking it had possibly been treated a little too carelessly!

Thanking you, sir!

[alan potts]

Considering these are some of the most expensive eyepieces on the market, it should be better.

My 4mm and 5mm are fine but the new 3mm is awful, I had a 10mm which was the same. To be fair though there is not much you can fault Televue on, goes to show they too are human.

Alan

[Joves]

Did you buy your 3mm brand new, Alan? If so, then it is a bit ordinary that they don't all come out of the factory with similar tension. I thought they must go that way over time.

[alan potts]

Could not agree more.

I bought all of the Radians I still have new, 3mm,4mm, and 5mm. I only see secondhand ones after I have bought one and in fairness they don't come up that often as the 3mm and 4mm are not of use to every scope.

Alan.

[John]

My 4mm and 3mm Radians are not too bad in this respect but the "Instajust" feature has been a bit of a "bovril" feature since TV introduced it - you either like it or hate it. It sounds like this is an area that the Delos design improves on quite a bit with it's twist lock approach.

[Mr Spock]

I always like mine all the way down.

[Joves]

Just used th remedy procedure on the 4mm and it worked a treat!

Thanks again, Ed.