NGC7000 North America Nebula @ F2.9

[laser_jock99]

First time imaging since spring so a little bit rusty (framing could have been better)- but there is plenty to look at. Also first time I used this scope in a while.

NGC7000 taken with GSO 8" F4 Newtonian telescope working at F2.9 using a 0.7x ASA Keller coma corrector/reducer, modifed Canon 40D full spectrum camera @ ISO1000. Stack of nine images totaling 38 minutes of exposure from a dark sky site in Mid Wales.

(click image for full size version)

 

[blinky]

Very nice, shows what these GSO F4 newts can do  -  I have a different brand and love it although I work at the native F4 as I dont have the reducer that you have

[alacant]

Puts my f3.9 in the dark by comparison! Amazing for such short exposure:)

 

[MarsG76]

Thats is a great result.. 

Is your 40D cooled?

 

[laser_jock99]

14 minutes ago, MarsG76 said:

Thats is a great result.. 

Is your 40D cooled?

 

No- just ambient (quite warm at the time ~12 degrees C)

[MarsG76]

Just now, laser_jock99 said:

No- just ambient (quite warm at the time ~12 degrees C)

Reason why I asked is because I use a canon 40D and considering the temperature that the uncooled camera sensor gets to, it's still quite sensitive and noise levels are quite low.. but that said my camera 30 minute subs get to 27-30 degrees C.... at 12 degrees like yours I would be quite happy.....

To counter the heating, I started assembling a cold finger modification to my 40D.... hopefully if I can get my sensor to under 10 degrees that would be a vast improvement... if I can freeze it that would be bliss.

[laser_jock99]

3 minutes ago, MarsG76 said:

Reason why I asked is because I use a canon 40D and considering the temperature that the uncooled camera sensor gets to, it's still quite sensitive and noise levels are quite low.. but that said my camera 30 minute subs get to 27-30 degrees C.... at 12 degrees like yours I would be quite happy.....

To counter the heating, I started assembling a cold finger modification to my 40D.... hopefully if I can get my sensor to under 10 degrees that would be a vast improvement... if I can freeze it that would be bliss.

I'm relying on the outside air cooling the camera, working mainly in the depths of winter. My best 'ambient' so far was -22 deg C back in 2010! More typically just below freezing though.

[MarsG76]

5 minutes ago, laser_jock99 said:

I'm relying on the outside air cooling the camera, working mainly in the depths of winter. My best 'ambient' so far was -22 deg C back in 2010! More typically just below freezing though.

yeah those are not the sort of temperatures I will ever see here.... i think the lowest I had in winter is 6 degrees... summer night time is mid 20s..... so I need to help-out the sensor with the cooling or heat dissipation.

[8472]

Whoah - that's one fast setup!

[MarsG76]

7 minutes ago, 8472 said:

Whoah - that's one fast setup!

I'm sure it took him a while to setup for such a accurately tracked image.. hihi. ?

 

 

[Rodd]

A wonderful sense of depth

Rodd

[kirkster501]

Great detail and colours in there!  Wow!