Planetary filter

[matt]

That's the one, John

Cheers

[ausastronomer (John Bambury)]

Gimme a few minutes and I will post a digicam pic of both filters (80A and 82A)so you can all see the difference.

CS-John B

[janoskiss (Steve H)]

I looked up the 80A and the 82A on Bintel's site, and the descriptions are identical with 30% transmission (most likely a mistake). But in the photos, the 82A looks a lot lighter, almost white.

One thing I find annoying with my GSO filters is the black but shiny housing. This has not been a problem when using them on individual eyepieces, but in the binoviewer they produce some nasty glare and reflections and are pretty much unusable on the Moon.

[matt]

Well, check other sites for your info, Steve.

Check MyAstroShop's filter guide for details on light transmission %

[ausastronomer (John Bambury)]

Here is a picture of the 80A and the 82A filters. They are both described as light blue but as you can see the 82A (on the right) is a lot lighter than the 80A. As to them both having 30% light transmission ? Rubbish !!!!

Both of these filters are 2" (48mm threads) Hoya filters. These are made in Japan and at the top end in terms of quality.

[matt]

John

Where are the pix??? And I think you've made another naming error in your first paragraph, matey

it's OK. I know what you mean.

Ahhhh there they are (the pix)

they didn't load for me 1st time.

yeah, quite noticeable difference. Good comparison.

[ausastronomer (John Bambury)]

All fixed, Don't mind me I am slightly retarded

CS-John B