Cygnus Constellation

[robindurant]

I have been waiting for weeks for the clear sky to take this one.

Canon 450D - 55mm lens - 10 x 10 mins subs

Robin

[themos]

What a beauty! Much improved from the 2009 version!

[Daniel-K]

how did you get 10 min subs??

[robindurant]

By guiding, the only way not to get star trails

[blackparticle]

Very nice. What ISO did you use for that and is it a modded 450D?

Melibum - The EQ6 and your HEQ5 Pro have the same specs for tracking accuracy and at a 55mm focal length should actually be able to do 10+ minute subs without the need for guiding. I've just got myself a NEQ6 and found it can handle 3 mins unguided at 200mm fl no problem (I.e no dropped subs from star-trails) so that should equate to at least 12 mins with a 50mm lens or a whopping 20 mins with a 28mm. To be honest, I could have pushed it further but there was light cloud causing some sky-glow and I didn't want to burn out the image.

[robindurant]

Modded, just filter removed not a Baader fitted, not needed on the 450D - ISO 1600

Robin

[laser_jock99]

Nice image- was this from a dark sky site?

[Daniel-K]

Very nice. What ISO did you use for that and is it a modded 450D?

Melibum - The EQ6 and your HEQ5 Pro have the same specs for tracking accuracy and at a 55mm focal length should actually be able to do 10+ minute subs without the need for guiding. I've just got myself a NEQ6 and found it can handle 3 mins unguided at 200mm fl no problem (I.e no dropped subs from star-trails) so that should equate to at least 12 mins with a 50mm lens or a whopping 20 mins with a 28mm. To be honest, I could have pushed it further but there was light cloud causing some sky-glow and I didn't want to burn out the image.

wow thats good to know as i was worried about star trail i was only doing 90s subs with the 55mm lens so i will give it a longer on next time and i will try 3 min with my 200mm

[dgsgc]

Incredible image, wish I was able to do 10 min subs like that.

[themos]

Which lens was it and how far did you stop it down, if I may ask?

[peteftm]

Great image robin , i'm getting my 1000D modded saturday and will be returning to this lovely playground of nebulas

[robindurant]

Laser_jock99 - No dark sky at all, from the edge of Brighton. If it were in a dark area it would be mind blowing

Thermos 55mm lens, at 5.6 I think

[themos]

ok, so nothing ridiculously fast!

[robindurant]

I find it easier to focus at 5.6, reasonable depth of field. I would rather use iso 1600 for the speed and I find it not detriment to the quality of the image providing you take many frames.

So many imagers go for iso 800 for better quality but I dont notice the difference when I do it considering we usually view the images on a PC screen. If printing out an image I think that this is different and a lower ISO would be better. Again it depends on how large you want to print out the picture.

That's my view anyway, many would disagree !

Robin