Widefield Orion - first light for Tokina 28-70mm lens on D800E

[tooth_dr]

My new lens arrived yesterday, and had some clear skies last night!  A few high clouds but Im very happy with this.  It was 3 x 150s at ISO400 F8.  I am very new to widefield imaging, and it certainly seems harder than using the telescope due to the smaller scale of everything.  This is a reduced size but uncropped stack of three subs on a full frame sensor.

[happy-kat]

Nice stars, we had high cloud here to. Did you take a test image with it wide open so work from to see which f stop to use for compromise of star shape versus light.

[tooth_dr]

1 hour ago, happy-kat said:

Nice stars, we had high cloud here to. Did you take a test image with it wide open so work from to see which f stop to use for compromise of star shape versus light.

At about 10pm I switched to the scope, and had a mare getting all running again.  Guiding was excellent last night, with total RMS of 0.9, and then the computer crashed about 6 subs after I left it, shame as I had some lovely subs of M101.

As for the F stop - I couldnt get focus, then ended up just stopping down to F8, I do have some at F2.8 F4 F5.6 that I can look at later.  It was late last night when I wrapped up and am away doing an outreach even tonight at a local school.

 

[Xiga]

I like that Adam. I love these widefield shots with the main stars accentuated so you can more easily see the outline of the constellations. Betelgeuse is looking lovely too!

Just one small bit of feedback - the stars look a little green on my monitor. I'd maybe try a quick pass of HLVG on a colour layer to see if it helps. 

ps - Is that a meteor you captured as well, just above Betelgeuse? 

Edited March 30, 2019 by Xiga

[tooth_dr]

On 30/03/2019 at 00:00, Xiga said:

ps - Is that a meteor you captured as well, just above Betelgeuse? 

Yes. I double checked and it was on my meteor camera at the same time. Pretty lucky!!

[Xiga]

1 minute ago, tooth_dr said:

Yes. I double checked and it was on my meteor camera at the same time. Pretty lucky!!

Nice! ?

[tooth_dr]

I finally got my follow up image of Orion.  Same equipment as above, 20 minutes worth of subs.  It's not quite as pleasing as the first image, but Betelgeuse is definitely dimmer.

March 2019

 

Feb 2020