Just wanted to mention to the group that when I perused my new issue (November 09) of Astronomy magazine I found a pleasant surprise on the last page - Mike...
this represents several years of work by several people including Mike Howell and myself The tricolor emission line method I pioneered in the world of amateur...
Hey Greg, I just got the new Sky & Tel..... with really nice advert for FLI $ 5995.00 for an ML 11002 ? Is that for the mono cam class 2 sensor? that's a...
here's a bit of info about this stuff it is really good for things where you need good high temperature stability, low outgassing and can tolerate high...
this is important!!! http://graflex.org/speed-graphic/lubricants.html Better Lubricants than Graphite Graphite powder, although it is an excellent dry...
This is off-topic but I'm sure I'm not the only one who has aluminum threads lock up when inserted in other metals. I have some no-seize I use for other stuff...
sudden changes can cause mechanical failure..... we call that thermal shock We have thermal test chambers we use for qualifying semiconductor packages (such as...
I've heard all sorts of old wives' tales about cooling including that you will damage sensors if cooled below -50C and what I say is complete rubbish from...
Hello all, This is my last production of 30 mn sub-exposures, Sharpless nebulae are new for me and this last is a patient art for me ! Object : SH2-132 Date :...
One thing i can add to your comment: many time for astrometry RC type telescopes are used. They are preferred due to the absence of coma: you always get round...
A question please about autoguiding. I am imaging with the PL16803 at 1.69 arcsec/pixel with ACP. ACP must use maxim for guiding. I bought a Lodestar guider...
Hi guys I have just connected a new Robofocus to my Starfire and I am seeing some horizontal ligt and dark banding in my images now..? the dark and light bands...
Could someone take a look at this strange flat pattern and tell me if it looks normal. It is in the file Jeffs 16803. When I process my images with this flat...
Hello Anjal Yes, my ML8300 works fine with Nebulosity...the latest beta version, as it has a FLI camera control. The only issue so far, which seems to be...
Hi Everybody We have got a great weather period here, I spent more time at the telescope the last couple of days than the last 12 months. Here is a RGB of the...
OK, I just got the quote for the Complete ML8300 setup from OPT, cost $6000. Man, that is not bad, but at the same time I can buy the STL1100 with internal...
if you want to quantify the difference in read noise for the high speed versus low speed modes, you could just take a bias frame from each speed and compare...
OK yep, you need to dig in a bit more I think what you want to know is how the read noise changes from the fast to the slow mode because the Proline has two...
i normally use yahoo's webmail during the daytime when i am at work for checking my yahoo groups email sometimes like friday and today, webmail acts up and...
OK I just did my calibration comparisons from slow speed 1mhz to fast speed 8mhz. Problem is the 1mhz speed darks have consistently MORE noise in individual...
I just complted a Photon Transfer Curve analysis of both an Apogee U8300 and an FLI ML8300 There is a lot to like about both cameras, but each are pretty...
Some of you may know that Jim Janesick is a friend of mine. I do correspond with him frequently and he has been very good about answering my questions. He's...
Jeff OMeara on the Astromart Forums requested that I post just the HeliumII (468nm) layer data for that recent M42 shot Even though it is just the blue...
I recently received a Microline ML8300 and finally have used it under the stars. Despite a full moon, I took this nearly 12 hours of exposure using the...
Hi: I am new to this group but know some of the members from other groups. I have a question in respect to the download time of the U8300 chip in different...
Hello, I am an amateur phtographer and visual astronomer. I have been doing astrophotography for about 4 years. I am a Star Member of the Los Angeles...
