toxic

11 hours ago, johngm said:

Didn't know it was the L lens, yes, great lenses. I was almost going to buy myself one ( if it it were the standard 70-300 )  😂

John

thanks john

i have the standard 70-300 as well john and apart from the 70-300 part there is no comparison the standard lens for colour reproduction in astro is terrible and it has to be used at F15 or more for the corners to have round ish stars and still suffered chromatic aberration.

where as the 70-300 L F4 has much better colour control and was used at F4 and the corners are not  to bad and no chromatic aberration.

15 minutes ago, johngm said:

Hi Chris,

That image for a standard 70-300 lens is fantastic. The only way i could think of improving on this would to be maybe try tweaking the contrast and darkening the blacks slightly. All in all, a great image.

John

hi John not the standard lens its the L so much better colour and much less chromatic aberration and thanks for the tips i just don't want to push it to much.

not been about for a while i managed a couple of hours out the other night with my new lens the EF 70-300 F4-5.6 L  and it gives much greater colour than any other lens i have.

please let me know what you think.

35 subs at 2 minutes per sub = 1 hour 10 minutes no crop.
canon eos 200d not moded AT ISO 6400  
canon EF 70-300 F4-5.6 L IS USM AT 70MM AND F4.
will need a lot more subs for noise and detail when i get the chance.

very nice indeed

On 04/10/2019 at 11:36, happy-kat said:

Reading my Dark Art or Magic Bullet book when using a DSLR or OSC then it is the light frame with the highest score you mark as the reference frame.

yes i agree but if it says will only stack 1 image then you need to select the lowest score as a reference frame so it will stack the rest.

to register (under advanced select  star detection 2 then register this will be find more stars.but dont select stack.

 then in the list click on score in the list and right click on the lowest score file and select use as reference frame then stack.

if you want it to stack all then select 100 percent to stack .

hope this helps

the band pass of the altair triad filter is the same as the baader uhc-s/+L filter and i used the 2 inch version of the baader when we had sodium street lights and it worked great on an unmodded canon eos 1100d but the main difference is the baader is over £100 cheaper

the 50 is great - in daytime photography its as sharp as you will get but in astrophotography you need to sop down to F5.4-for nearly sharp to-F7.1 for realy sharp stars in the corners.

example single 120 sec at F7.1 canon 200D with 50mm on SA no processing just converted to jpeg for posting.

why not go for the SW AZ EQ6 gt at £1,379 if you have 1500 to spend on a mount it is a superb mount.

if your looking for used dslr then look here https://www.mpb.com/en-uk/used-equipment/used-photo-and-video/used-digital-slr-cameras/used-canon-digital-slr-cameras/ there are loads under £100

ok will try ty

On 30/05/2019 at 17:31, Rodd said:

Very nice--notch down the brightness in the center and details will resolve.   On my screen there is a greenish cast--but that could easily be the monitor. 

Rodd

have gave it a go to reduce the brightness and the green with hlvg please let me know if the green is gone .not sure about the brightness though

will have a look at that thanks Rodd

its a nice M57 but i think you may have clipped the black just a bit to much but it may just be my monitor 

wow very nice indeed Rodd

4 hours ago, MarsG76 said:

 it's also a southern sky object, never comes above the horizon from Europe... 

that explain's it lol 

another beaut image Peter 

very nice image Carol and nicely processed 

thats a beaut peter nice detail in the galaxy as well 

very nice indeed mars not seen this before

thanks a lot Tooth

thanks FAb

lovely set Gav

thanks very much bobro i am surprised i remembered how to do the astro stuff after some time of lol

first light with the new SW Quattro from FLO courtesy from the wife for i havent posted in a while as i have not been to well thanks to james cook im doing much better anyway here's the image.

1 hour each of LRGB at 300 seconds per sub

3 hours of HA at 600 seconds per sub

atik 383l mono efw2 with baader fiters SW Quattro 10s with aplanatic cc all on the SW AZEQ6-GT

thanks for looking and all CC welcome