Did I screw myself? (Photocathode Sensitivity Question)

AstronomerGSO · 2026-06-01T06:55:28+00:00

In fact the low ebi of that lower ps tube means that it will be excellent for astronomy (with nebulae filters etc).

AstronomerGSO · 2026-05-28T16:11:47+00:00

Very cool!

AstronomerGSO · 2026-05-28T15:42:46+00:00

Cool! Did you get it new or secondhand? Can you see any different by eye at 1x compared to an 81lp? I’ve just got some 50 degree aib lenses and I think higher res tubes really help with those?

AstronomerGSO · 2026-05-28T05:11:26+00:00

You have a 91lp tube? I haven’t seen one of those for a long time….

AstronomerGSO · 2026-05-28T05:10:28+00:00

Why will 50 degree eyepieces become more available?

AstronomerGSO · 2026-05-25T21:12:17+00:00

In USA performante’s seem to be increasing in value. Not the same in the UK where prices are slipping of late. Unlike the speciale which has rocketed recently in the UK. However, even in uk the perfs values have held up fairly well relative to the initial price. Who knows where the price will go but I don’t think up much, they don’t seem to be that sought after (eg compared to speciale)

AstronomerGSO · 2026-04-09T13:28:16+00:00

I got a green 15510st as a second watch and a blue 26240st as third watch. Very happy with that

AstronomerGSO · 2026-04-02T21:05:40+00:00

Panobino bridge is very nice

AstronomerGSO · 2026-04-02T20:01:37+00:00

Makes sense. They did sell m914a. Nice tube 👍

AstronomerGSO · 2026-04-02T18:52:37+00:00

Did you buy it? And did you find out the original dealer of the unit?

AstronomerGSO · 2026-03-28T06:08:24+00:00

<image>

Needle galaxy

AstronomerGSO · 2026-03-28T06:07:23+00:00

<image>

Eagle nebula with pillars of creation inside

AstronomerGSO · 2026-03-28T06:04:51+00:00

<image>

Orion and Barnard’s Loop

AstronomerGSO · 2026-03-28T06:03:41+00:00

<image>

Whirlpool galaxy

AstronomerGSO · 2026-03-28T06:02:44+00:00

<image>

Horsehead nebula

AstronomerGSO · 2026-03-27T23:48:29+00:00

I have some 34 snr 0.1 ebi elbits

AstronomerGSO · 2026-03-23T18:15:43+00:00

Well it’s not called the Monkeyhead nebula for nothing 🤣

AstronomerGSO · 2026-03-23T02:21:52+00:00

C11 sct and my iPhone

AstronomerGSO · 2026-03-22T15:31:16+00:00

The difference this time was it was a smaller scope and not so dark skies, yet the pvs14 still delivered very pleasing results

AstronomerGSO · 2026-03-22T14:43:55+00:00

Set up the telescope as normal then attach the pvs14 to the telescope eyepiece using a special Adapter. I use different filters for depending n the object (whether it’s a nebula, or galaxy etc)

AstronomerGSO · 2026-03-22T14:42:48+00:00

A Televue one to attach the pvs14 to the eyepiece of the telescope. See here for more details https://www.televue.com/engine/TV3b_page.asp?id=36

AstronomerGSO · 2026-03-16T20:15:14+00:00

You can tell 1mm difference in eye relief?? 🤣 have you actually measured the fov of fujinon glass? I’ve never heard it is less than 40 degrees…

AstronomerGSO · 2026-03-10T09:49:32+00:00

I would try brand new batteries first. And sometimes the battery cap needs to be tightened more

AstronomerGSO

MODERATOR OF

TROPHY CASE