Category: Gear
Re: focusmax + maxim 5.03 + binning
Art Morton wrote: > > On Jan 31, 2009, at 12:04 PM, Jimbo S. Harris wrote: > >> Let me screw around with that and see if I can get MaxIm and […]
Focuser / Maintenance / Optics
Re: scope getting dialed in
Art Morton wrote: > With a couple more moon nights you will have a perfectly calibrated G-11 I hope so; It really is a lot of new stuff to learn. Someday I’m […]
Deep Sky / Gear / General / Long Exposure Photography / Techniques / Technology
what a night
Yesterday afternoon, I industriously cleaned all my camera optics (CCD, MPCC both sides, IDAS-LPS both sides), and was convinced that this would be good for my flat field. More on this later. […]
shortest possible drawtube?
A, In order that I can use my scope for either visual or photo, I have this long-ass drawtube. It’s racked in for the camera, racked out for the eyepieces, everything works, […]
shortest possible drawtube?
Hi Ron, Now that I’m all comfy with how the Moonlite focuser works in my photography setup, I’m ready to start tuning the drawtube length / extension so that I can stay […]
Re: replacing the ST-8
Art Morton wrote: > I went to Jim’s shop for filters. He did not have any so I did not buy. I think that you want Astronomik, but Astrodon get a lot […]
Mak-Newt astrograph
http://www.telescope.com/control/product/~category_id=optical_tube/~pcategory=telescopes/~product_id=09972;jsessionid=1F169A3F4A7E251D80206B44FD7ABEF1.ivprod1 1000mm focal length, f/5.3 (I’m sure it uses the same primary that is in Veronica, with a 190mm Mak corrector). Edge of field on a DSLR looks sharp. Decent sized 2.3” […]
Re: Gemini
Art Morton wrote: > http://www.lazyfocus.com/docs/GSI/GSI_Manual.htm I bought one of these from James L. last year. He doesn’t actively sell them, so I had to wait a bit for him to get around […]
Gear / Maintenance / Optics
Pumpkin's field flattener — needs work
I bought a WO FF/FR for Pumpking, but I still need to figure out how to tune it. It’s still not quite right. Can’t use it as a widefield lens if the […]
Telescope "first light" photos
I put in some temporary “tubes” so I could check the focal length of the telescope. The varnished pieces look really cool. I was not really prepared for how big the scope […]
RECENT UPDATE
Polar Alignment Calculations
Here’s a page that derives Polar Alignment Calculations. (update 5/2020: the original site is gone, so I found the text on Wayback and am inserting it below. This is by the original […]
Gear / Observatory / Telescope
Special Guest Star takes the mount at Hilltop O
The Astro Jedi needed somewhere to store his light sab—- I mean, bucket, and I was only too happy to accommodate him. I have decided that I need to come to a […]
General / Maintenance / Observatory
Dome shutter is motorized again!
I finally decided to bite the bullet and fix the shutter motor. Things went sideways last winter, and I’ve been opening the shutter manually (and tying it shut with rope, so we […]
Trixie 2017 – tube mods
I finally got around to cutting the MTA-UTA tubes to length; the only eyepiece that would come to focus with the focuser spacer in place is the Televue 55mm Plossl. If I […]
MOST COMMENTED
Observatory
Observatory 2.0 – Time has come today!
General / Maintenance
First Light, a deeper look
Mount / Observatory / Telescope
Observatory 2.0 – Result!
Observatory
Observatory 2.0 – The Pier goes in
Gear / General / Maintenance
Martin Farmer Wormblock installation notes
Deep Sky / Long Exposure Photography
NGC2244, The Rosette Nebula
Deep Sky / Long Exposure Photography
Another beautiful night.