Imaging with Televue 101

[libraryman]

Hi all, does anyone do any ccd imaging with the older TV-101, i am considering one for that purpose.

Ray

[ChrisLX200]

No but I've used my Genesis SDF which is optically similar. The TV101 makes for an excellent imaging scope, you really cannot go wrong with it. The newer TV101is has perhaps a better focuser but the original is fine when adjusted correctly. The 101 has fast optics and offers a wide, flat field + large image circle to cover large sensors, focusing is critical though (because of the f/5.4) so it's worth investing in a motorised focuser.

ChrisH

[libraryman]

Cheers Chris, I wondered what fuel flatness is like over an APC sized chip, have you any views on that?

Ray

[ChrisLX200]

Up to that size it is considered to be flat, full-frame sensors you can use the TV FF but the drop-off at the edges on FF would be hardly noticeable.

ChrisH

[libraryman]

Cheers Chris, I wondered what fuel flatness is like over an APC sized chip, have you any views on that?

Ray

Thanks for that Chris,  iv'e just read previous post !!  FUEL flatness !!! what's that...  

Should have gone to specsavers!! 

Ray

[Druid]

I got some vignetting trying to use my TV101 with a (full-frame) D700. I suspect someone who knows what they're doing could get rid of it though, it wasn't too severe.