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"Flickr can be fussy….Try it again" nope. Same msg. Also that link-text is a bit defective due to the period between ".com" and "/photos". That and the omission of http: or www prevents

Sorry Stan….Flickr can be fussy….Try it again. Bob Sent from Mail for Windows 10

It is number you get from the company that authorizes you to return something. You put it on the box and that starts the return process. Return Merchandise Authorization Sent: Friday, April 15,

" info about the CCD's available to us amateurs" this looks rather promising and won't break the bank: ASI 1600MM-Cool (mono) - ZWO ASI

what's "RMA"?

Can't see those images because Flickr reports: "Robert Shartrand hasn't made any photos public yet"

Hey Bob I was in the trades when I was working and we always said “anyone can make something nice with brand new tight machines” but it takes skill and knowledge to make something with a less

Hi Gary, Yes, I can run 5-10 minute sub exposures without guiding but a lot more losses than with guiding. I've run hundreds of 5,10 and 15 minute sub exposures and even many Ha filtered 20-30

Thank you very much Stan for the heads up on, and info about the CCD's available to us amateurs.

This is an update to my original issue/post of a brand new C11 EdgeHD giving unacceptable star trails, with under 5min exposures, using a piggyback guide scope. As is to be expected, Celestron

Bob I don't know but just about any decent mount with a good polar alignment could take an unguided sub without guiding. So the question is did you turn off your guide scope camera and take a sub of

Absolutely you should be able to use a piggy back guide scope for 5min exposures. You should be able to do so at f11 too. The last paragraph on page 13 of their white paper offers their 80mm

For those of you who have doubts about guide scopes for imaging I've uploaded some images taken using a C14 at f5.5, a 105mm guide scope and a SBIG ST8 all mounted on an AP 1200 mount. The FWHM of

Interesting, and rough. Not only don't you have the greatest weather there either, but then it gets pricy too. I?found something out today that maybe is not commonly known? or?remembered.I got it

Hi Stan, I took those readings from CCD Inspector and mistakenly read from a finished .tiff file. Most of my subs are under 2 and about 10% can be as much as 3.5 in poor seeing. Bob.

Hi Keith, Sorry I was thinking of the C14 price, the C11 EdgeHD is 4,450 GBP here (6,343 USD), still twice what someone would pay in USA (3399 USD). Yes 20 per cent VAT sales tax here does make it

" LRGB image of M1 that has a FWHM value of 2.91 and the LUM sub exposures averaged 1.63" That doesn't make sense. LRGB takes all resolution from the Lum and only uses RGB to colorize that Lum.

" is it possible ... to get Sirius and the pup?" Haven't tried and can't really say. The problem with that goal is seeing and OTA light scatter. So a very clean OTA under good seeing ought to be

Hi Keith, I use an Optec F5 reducer made for C14s using a ST8XME so there is almost no corner problems. My mounting rings for the guide scope are attached by a Losmandy D plate at both ends of the

Hi Stan, Recently I took a LRGB image of M1 that has a FWHM value of 2.91 and the LUM sub exposures averaged 1.63. I have many other LRGB images ranging from 2.71 to 4.12 FWHM. Bob Sent from Mail for