I am getting a lot of noise at ISO 800 and ISO 1600....

Wheatfield · 11-30-2010, 07:32 AM

Originally posted by Abstract

I am very confused, I thought at these ISO's it was virtually non existent.

Purple Fringing also seems to be a problem...

I am using a Pentax-M 50mm 1.4 in perfect condition, flawless.

What could I be doing wrong here?

It would help if your images weren't underexposed by a couple of stops.
If you've found a way to make the lens/sensor combination give you fringing, you've learned what sort of condition is going to provide fringing with that lens/camera combination.

Abstract · 11-30-2010, 10:31 AM

Ahh I see my error now, I do have a question though, I remember hearing something about using older manual lenses and exposure compensation but am not sure what if at all I would need to set my camera at for manual lenses.

This all makes a lot of sense though and I am going to try that Topaz program while I am at it.

eddie1960 · 11-30-2010, 10:37 AM

Topaz is very good from what i've seen, and just to reassure you Film at 800 and 1600 is also "noisy" we just called it grain and learned to love it :-P

Abstract · 11-30-2010, 10:41 AM

Yeah I know, to tell you the truth this is the nicest digital noise I have seen yet but nothing will compare to the old film grain, I rather like that....

eddie1960 · 11-30-2010, 10:48 AM

i still love tri-x pushed to 16-3200 gives a grittiness to some subjects that just suits them so perfectly

don't have a sample handy of my own on line but from talking to anto at a movie premiere he used tri0-x a lot for joy division like this one
copyright of course is anton corbin

http://media.drawerb.com/wp/2007/05/113252950large.jpg

I'm shooting Glen Matlock on monday and aside from my digital i will take a couple of rolls of tri-x and a km (my mx is inoperable currently)

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11-30-2010, 07:32 AM	#16
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,981	Originally posted by Abstract I am very confused, I thought at these ISO's it was virtually non existent. Purple Fringing also seems to be a problem... I am using a Pentax-M 50mm 1.4 in perfect condition, flawless. What could I be doing wrong here? It would help if your images weren't underexposed by a couple of stops. If you've found a way to make the lens/sensor combination give you fringing, you've learned what sort of condition is going to provide fringing with that lens/camera combination.

11-30-2010, 10:31 AM	#17
Abstract Inactive Account Join Date: Sep 2010 Location: New York Photos: Gallery Posts: 388 Original Poster	Ahh I see my error now, I do have a question though, I remember hearing something about using older manual lenses and exposure compensation but am not sure what if at all I would need to set my camera at for manual lenses. This all makes a lot of sense though and I am going to try that Topaz program while I am at it.

11-30-2010, 10:37 AM	#18
eddie1960 Veteran Member Join Date: Aug 2010 Location: Toronto Photos: Gallery \| Albums Posts: 13,666	Topaz is very good from what i've seen, and just to reassure you Film at 800 and 1600 is also "noisy" we just called it grain and learned to love it :-P

11-30-2010, 10:41 AM	#19
Abstract Inactive Account Join Date: Sep 2010 Location: New York Photos: Gallery Posts: 388 Original Poster	Yeah I know, to tell you the truth this is the nicest digital noise I have seen yet but nothing will compare to the old film grain, I rather like that....

11-30-2010, 10:48 AM	#20
eddie1960 Veteran Member Join Date: Aug 2010 Location: Toronto Photos: Gallery \| Albums Posts: 13,666	i still love tri-x pushed to 16-3200 gives a grittiness to some subjects that just suits them so perfectly don't have a sample handy of my own on line but from talking to anto at a movie premiere he used tri0-x a lot for joy division like this one copyright of course is anton corbin http://media.drawerb.com/wp/2007/05/113252950large.jpg I'm shooting Glen Matlock on monday and aside from my digital i will take a couple of rolls of tri-x and a km (my mx is inoperable currently)