The second time around is a vast improvement - not only of the stars but nebula detail as well. The Runner was an also-ran before - he's well into 1st place...
Hi, I found some interesting articles about how to evaluate the different exposure times for the RGB images. But I couldn't find anything how to determine the...
Hi All, I'm sure that this question has been asked and answered but I cannot find exactly what I am looking for. I would like to concentrate on M42 for a few...
This will get you started http://www.astropix.com/HTML/J_DIGIT/TOC_DIG.HTM under advanced techniques. I use variations of this technique. You can use as many...
... It depends on what you mean by "exposure time": the length of a sub-exp or the total exp time for a target/image? There is really no difference in regards...
Sorry, should have been more specific. What I'm interested in is the relative exposure time (sub, but also overall) of luminance vs. rgb. MarkS ... [Non-text...
I've been trying to email Rob Miller for about 3 weeks with no luck. Has anyone had any contact with him lately? Mark [Non-text portions of this message have...
Thanks for that information. I took a look and that should help a lot. I have also been learning how to use Pixinsight and noticed that there is an HDR...
I just got a bonus at work and I want to buy a motorized focuser. I'd like to get opinions from the group on what people have experienced. All I do is imaging...
... I have a Starlight Instruments Feather Touch model 3545 3.5" focuser on my 130mm APO, along with the accessory motor. I use ACP automation software to...
I have a Starlight FeatherTouch focuser on my ATRC12. I put a RoboFocus on it and am very happy with the results. \\http://www.robofocus.com/products.htm I...
The Feathertouch+MicroTouch is all but unbeatable. Â It along with FocusMax+CCD Autopilot is an awesome combination. Â I have this on a TOA-130 and it's...
Should have also mentioned that the imaging train contains a Tak CAA+ Astrodon Takometer, so that's a bit more weight for the focuser to carry. Mark ...
I'm using an SCT with a full load of equipment behind my focuser. I'm using an Optec TCF-S for control. It's holding an ST8 and a Pyxis Rotator. I removed my...
I try to get ADU counts of the brightest areas in the 30-40k (80% of full well capacity) range. I do a test exposure to measure brightness. If the backround...
... Indeed. I forgot to mention in my original response that I also once had a 2" TCF-S on a 9.25" SCT, with the same ST-8, Pyxis, and CFW-10. The TCF-S is a...
Did I misread? Â I thought the OP is using a 105mm refractor. Â Seems to me that neither a TCF or Ballerophon would be a very appealing option on a refractor...
... No, you did not misread. You are correct that the Bellerophen would be pretty heavy for a 105mm refractor. That's why my original reply mentioned the FT. I...
The TCF-S does need an SCT thread. You can get an SCT to 2 inch barrel adapter. Not expensive at all. I used to use one when I was using SCT attachments on a...
Agreed on both counts. Â I have a TCF-Si as well that I use on an ACF. Â Great focuser. The Ballerophon was a bit out of my price range, not to mention a...
... Hi, Mark. Yes, I bolted the Bellerophon to the rear casting of my C9.25 SCT. I don't know if this was necessary, but I didn't like the idea of sll that...
I have a Moonlight (www.focuser.com) stepper-motor focuser for my Televue NP127is and SBIG ST2000XM. I use it with MaximDL and FocusMax. Once I figured out how...
... Lum sub-exp time should be determined by its own criteria (e.g. "sky limited") and has nothing to do with the sub-exp times of the RGB. Any sub-exp L/RGB...
This is an interesting dissection of a Bayer-array CMOS sensor: http://landingfield.wordpress.com/2013/02/06/peeping-into-pixel-a-micrograph-of-cmos-sensor/ ...
NGC 925 in Triangulum is an interesting challenge – fairly large but fairly faint. Image is here: http://tinyurl.com/au3p5qo After some years of happy OSC...
Bob, Not bad for your first image. I am not that familiar with this object so I am not sure about the color. It looks like you black clipped the data little....
