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I was out last night and made almost two hours worth of subs on m51, but when i woke up this morning i got to think about whether i set the image settings to raw....

Well i didnt, its jpg. Is it possible to get something out of jpg or is it a lost cause?

/Lukas

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I am sure you will get something out of it, you can stack JPEG in DSS, so you should get something. I think you will just be limited in what you will get out of an image when you come to mess about with it isn PS.

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Sure. Stack it and see what happens.

JPEGs will limit the amount of fine detail that can be extracted when stretching, so if it was a target with lots of faint nebulosity then you would lose some data.

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I used to take all my images in JPG, till I realised there was a better way.

So yes you'll get something, and hopefully you'll be happy with it.

Cheers

Ant

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Been there, done that a coupple of times - and afterwards, i've never used the JPG settings ever again unless i was shooting a timelapse at the smallest JPG... :(

But yes, you will still get details out of it, but it will be limited to less details then from a raw. Especially if it's underexposed. If it's well exposed i've got OK-ish results from JPG as well.

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You might need flats/darks etc in jpg as well. I discovered that on my 1000D RAWs are a slightly different size from jpegs, so DSS wouldn't mix the two. So when I made this mistake recently, I did a special run of jpeg flats (at roughly the same camera angle - I didn't discover the problem until I had taken the camera off the scope).

NigelM

Edited by dph1nm
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I've got that T-Shirt, too. Thankfully, I don't have to remember any more now I use APT. Also, I always leave it in RAW+jpeg mode for daytime photography, just in case...

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Its good practice for learning to always check your in raw mode not jpeg, ;) but you should be able to get something from it. I did that with a few galaxy's in the past and still got a reasonable result but most frustrating to find there in jpeg and not raw.

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