Hello! I live in San Francisco and am seeking people who want to go to Lake Sonoma or somewhere else north of San Francisco to image. I can go on some...
I am trying the 30 day sample of MaxDSLR and not having much success. There have been a lot of crashes on WinXP. More alarming is when I convert to RGB I...
Take a look at the x and y offset settings in the color convert dialog. You need to set them both to 1 for my Canon Rebel XT. That will change the color...
Fellow TAC-Imagers, I am hoping to try out some astrophotography tonight with my Canon 20D. I do not have a software package nor do I have a remote/serial...
Maxim and MaxDSLR do *not* collide. I was guiding using the ST4/maxim combo over my serial port and shooting through maxdslr all through calstar with a...
... You probably already figured this out.. but if not.. My understanding is that you have to start the exposure in maxDSLR then start the exposure on the...
After a highly fun and satisfying Calstar event, I am eager for a night under the stars. I am considering LBV this coming Saturday night. Is anyone else ...
Sorry, TAC-Imaging is next to TAC-South in my address book... ... __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 ...
If I have, say, 10 raw images of M33, is it better to combine the ten and then use a master dark (median combined fromo 10 darks) to subtract noise, or should...
Jerry, I always calibrate each image (dark subtract and flat divide) before combining them. Best, Phil Terzian Jerry Gerber <jerrysgerber@...> wrote:...
I understand how to take bias and dark frames. Can someone offer suggestions for taking flats? How much exposure is adequate? What target? Rob Hawley...
Hi Rob, Here's how I do it. Wait until just after sunset and then stretch and old, white undershirt over your scope and secure it with a rubber band (to...
Hi Rob, This is a pretty big subject and has been covered in great detail by several authors and imagers on their websites. Ron Wodaski's book, _The New CCD ...
Hi Rob - this is a very detailed subject, with a great deal of controversy, depending on the type of imaging you are doing. If you are doing just pretty...
Thanks for the responses. Let me narrow the problem. I am taking wide field photos (18 or 55mm) with a Canon 20Da RGB on an EQ-3 mount. This is for pretty...
I assume you are getting either TIFFs or FITS images from the camera and have some software that can manipulate them? Then everything I said is still true....
Rob, I stand by my original (simple) advice. In addition, bias frames are not necessary. Just take a fresh dark frame each night at the same ambient temp and...
I purchased Images Plus. Nice program. I was going to shoot bias shots with the cap on at the highest speed. I suspect the camera corrects for this, but it...
Our very own Ray Gralak, CCD imager par excellence, told me a few years ago that flats taken against the dusk sky are 100x flatter than with a lightbox. Ray,...
Paul, I don't recall I said 100x but it might be that much if you pointed to exactly the right spot in the sky. -Ray ... limousine&w3=Astronomy+magazine&w4>...
Does anyone have any experience with the Astro Handy light box? Don Goldman of Astrodon did a review of the Adirondak flat fielder and says its as good as high...
Using a webcam at prime focus I took a 30 sec movie of mars and stacked the individual frames to produce a single image of Mars on Saturday night/Sunday ...
Ivor, Very nice result. You can even make out the polar ice cap. Phil Ivor Barker <ibarker@...> wrote: Using a webcam at prime focus I took a 30 sec...
Say, we had some pretty decent seeing over the weekend out here in Livermore and I was able to get some respectable images of the moon with my Mak and Atik 2HS...
Schweet! Those are great, Jim. I especially like the fourth one down, is that Garamendi? I love the contrast and detail. Fun stuff. Nothin' but clouds down...
Jim, After looking at these images I felt like I needed to wipe the moon-dust off my shoes. Fabulous. Phil T. Jim Ferreira <ferreira1@...> wrote: Say, we...
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