Long Exposure Noise

This shows how the subject can affect the exposure & why manual keeps me worry free:
Post #47

For a good starting point, first set the f-stop & shutter speed you need. Then adjust the ISO.
Need an exposure crutch?

That would be the easiest solution. Then you could blend the parts of each image that you like in PS.
Image blending

Blending Modes in Photoshop and Elements

Photoshop's Five Essential Layer Blend Modes For Photo Editing

Frank, are we on the same subject here?

I was talking specifically about using the meter reading to indicate the bracketed exposure as a plus or minus value during low light photography. The point being that it's not much help trying to adjust the shutter speed to show a plus or minus value (in stops) if it's being held in the centre by Aperture Priority.

Again, I was talking specifically about low light photography, so the ISO isn't the final variable that gets altered. For low light photography (landscapes and seascapes) I always use ISO100 and f/8, the shutter speed being the only variable. Even if altering the aperture the ISO is only ever going to be 100.

That's also why I don't use automatic exposure bracketing because I'll often alter the bracketing at the last moment, or add extra bracketed shots, so I want total flexibility. This is most useful when the sun is setting and the light is changing considerably by the second.

I already said, as part of my suggestions, that image blending is part of the whole process.

Mike

Thanks very much Ockie that sounds great also. I just tried it out and it does it all automatically which is very handy. Thanks again.

Thank you for your links PhotosGuy very helpful and much appreciated. To Mike, I see what you mean about AV mode also so I don't think I'll be shooting much long exposure in the mode anymore I like the freedom you were describing in Manual. Funny thing is the book "Digital Photography" by Scott Kelby was recommending this mode hence why I was using it. Thanks again for everyone's input to this. I am definitely learning from all this information. Much appreciated.

Mitch

My point was that that you should get off Av. Not stated is that noise can be reduced by proper exposure which I think was your primary question. Maybe I should have said that.

Ahh okay, I see your point now!

Mike