|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
all eline to avoid the moon issues.
first light: ML8300 camera with AP155EDF f/7 http://www.narrowbandimaging.com/ic1...2hao3_page.htm ML4022: with AP180EDT f/9 http://www.narrowbandimaging.com/m27...iumII_page.htm http://www.narrowbandimaging.com/m42...2hao3_page.htm http://www.narrowbandimaging.com/sh2...2hao3_page.htm |
#2
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
Richard Crisp wrote:
all eline to avoid the moon issues. first light: ML8300 camera with AP155EDF f/7 http://www.narrowbandimaging.com/ic1...2hao3_page.htm ML4022: with AP180EDT f/9 http://www.narrowbandimaging.com/m27...iumII_page.htm http://www.narrowbandimaging.com/m42...2hao3_page.htm http://www.narrowbandimaging.com/sh2...2hao3_page.htm You are keeping FLI in business with all those new cameras. I keep hearing folks saying how awful the 8300 chip is with such a low well depth yet all the photos seem to say otherwise. Small pixels would seem to be more difficult to achieve with a deep well capacity. In any case it doesn't seem to be the problem all are making it out to be. Few deep sky objects would ever reach that capacity anyway even in very long subs. Though no where near the sensitivity of your NABG chips. You are imaging up a storm but please no M42 shots, It isn't winter yet! We never got any summer so far. Never turned on the air conditioner but have used the heat pump many days for heat. My wife's tomatoes are still very green yet. Lost some to frost the other night. Don't know if she'll get any or not this year. Full moon here but very smoky skies thanks to to southern Cal fires. Last night best I could see was 2nd magnitude through the smoke and moonlight. Not bothering you? Rick |
#3
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
"Rick Johnson" wrote in message . com... Richard Crisp wrote: all eline to avoid the moon issues. first light: ML8300 camera with AP155EDF f/7 http://www.narrowbandimaging.com/ic1...2hao3_page.htm ML4022: with AP180EDT f/9 http://www.narrowbandimaging.com/m27...iumII_page.htm http://www.narrowbandimaging.com/m42...2hao3_page.htm http://www.narrowbandimaging.com/sh2...2hao3_page.htm You are keeping FLI in business with all those new cameras. I keep Well I will have to admit that they sent me the ML8300 at my request to test. Maybe I can hang on to it for a couple of months. I didn't get much time with the PL16803, now THAT was a Man's Camera!!! hearing folks saying how awful the 8300 chip is with such a low well depth yet all the photos seem to say otherwise. Small pixels would seem to be more difficult to achieve with a deep well capacity. In any case it doesn't seem to be the problem all are making it out to be. Few deep sky objects would ever reach that capacity anyway even in very long subs. Though no where near the sensitivity of your NABG chips. the peak QE of the KAF8300 is still well into the 40s.... It isn't bad at all. And other than stars, nothing is going to fill up the wells, especially with narrowband. The KAF39000C was below 20% across the board. The Monochrome KAF39000 is about 2x the color version though You are imaging up a storm but please no M42 shots, It isn't winter yet! Hey I needed something to do between 3am and sunrise Rick. It was either start a multi day Crab shot or do M42: something that could be completed in a single session.... We never got any summer so far. Never turned on the air conditioner We had some really hot weather this summer but not as much as the year before. but have used the heat pump many days for heat. My wife's tomatoes are still very green yet. Lost some to frost the other night. Don't know if she'll get any or not this year. Full moon here but very smoky skies thanks to to southern Cal fires. Last night best I could see was 2nd magnitude through the smoke and moonlight. Not bothering you? Well I smell smoke each morning about 4-5:30am but then it goes away. Never see any but can smell a bit.... Been lucky so far on the fires overall this year. Last summer I could barely see Vega one night despite the cloudless skies.... redder than Arcturus |
#4
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
Great series Richard. Operating two scopes at the same time sure helps to
get the exposure times you have here. As I am faintly considering to buy a camera with the Kodak 8300 chip I would be interested to hear your opinion on it. Does it produce "noisier" images than the 4022 chip? I saw a post by Terry Platt in the SXpress Yahoo group where he said that he tested the 8300 chip and thought it's cosmetic specs were not good enough compared to the 4022 chip. I shy away from the 4022 chip because it has such a low sensitivity in Halpha. Stefan "Richard Crisp" schrieb im Newsbeitrag m... all eline to avoid the moon issues. first light: ML8300 camera with AP155EDF f/7 http://www.narrowbandimaging.com/ic1...2hao3_page.htm ML4022: with AP180EDT f/9 http://www.narrowbandimaging.com/m27...iumII_page.htm http://www.narrowbandimaging.com/m42...2hao3_page.htm http://www.narrowbandimaging.com/sh2...2hao3_page.htm |
#5
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
"Stefan Lilge" wrote in message ... Great series Richard. Operating two scopes at the same time sure helps to get the exposure times you have here. As I am faintly considering to buy a camera with the Kodak 8300 chip I would be interested to hear your opinion on it. Does it produce "noisier" images than the 4022 chip? I saw a post by Terry Platt in the SXpress Yahoo group not that I have seen Stefan. I measured the read noise to be less than 8 e-. Considering that is for a 12MHz download that is darn good. It may be lower than the competition and they most likely are running 1 or 2 MHz. This guy is downloaded very fast. I was expecting that Eline image of the IC1396 area to be noisier than it was. It was pretty clean: I only did my usual SGBNR very light noise treatment: nothing out of the ordinary. The KAI4022 has some nice properties: the electronic shutter makes taking flats easy.... but it has low Ha sensitivity just like the old STL11000's KAI11002 The KAF8300 is a full frame and antiblooming but it seems sensitive enough and works well with the tiny pixels. I got a decent image scale with the AP155EDF f/7 and really enjoyed using it. I want to try it on the '180EDT f/9 but so far I have the ML4022 stuck on it due to incompleted projects. I want to shoot an unfiltered shot of NGC7331 with it and see how it looks from the AP180EDT f/9 so I may make the change this weekend. where he said that he tested the 8300 chip and thought it's cosmetic specs were not good enough compared to the 4022 chip. I shy away from the 4022 chip because it has such a low sensitivity in Halpha. If you ask me, I think Terry's excuse is a convenient one to prevent him from having to deal with a mechanical shutter. Don't all his cameras use interline chips with electronic shutters? Has he ever built one with a mechanical shutter? |
#6
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
If you ask me, I think Terry's excuse is a convenient one to prevent him
from having to deal with a mechanical shutter. Don't all his cameras use interline chips with electronic shutters? Has he ever built one with a mechanical shutter? Richard, you may be right here. SXpress do not have any cameras with a shutter. Actually I like going without a shutter, one less part that can fail. Thanks for your answer. Stefan |
#7
|
|||
|
|||
ASTRO: Full Moon Shots from the weekend
"Stefan Lilge" wrote in message ... If you ask me, I think Terry's excuse is a convenient one to prevent him from having to deal with a mechanical shutter. Don't all his cameras use interline chips with electronic shutters? Has he ever built one with a mechanical shutter? Richard, you may be right here. SXpress do not have any cameras with a shutter. Actually I like going without a shutter, one less part that can fail. Thanks for your answer. the nice thing about interline sensors is the ability to take arbitrarily short flats.... I do that with the ML4022: take 50 ms flats sometime: no shutter shading! Stefan |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
ASTRO: the faint one under a full moon | Richard Crisp[_1_] | Astro Pictures | 5 | November 28th 07 02:38 AM |
ASTRO: my best moon shots sofar (3/3) | TheCroW | Astro Pictures | 2 | February 27th 07 09:33 PM |
ASTRO: my best moon shots sofar (2/3) | TheCroW | Astro Pictures | 1 | February 27th 07 07:46 PM |
ASTRO: my best moon shots sofar (1/3) | TheCroW | Astro Pictures | 0 | February 27th 07 01:42 AM |
ASTRO: Nearly full moon | George Normandin | Astro Pictures | 2 | January 23rd 07 02:23 AM |