What resolution and dpi should we scan 35mm negative to digital

LesDMess · 09-21-2013, 12:48 PM

Originally posted by tuco

I scan on a 9000ED and I do see how it compares to my 36MP digital camera.

Then you may know how my Techpan resolution results compare to the D800 . . .

tuco · 09-21-2013, 12:50 PM

Originally posted by LesDMess

Then you may know how my Techpan resolution results compare to the D800 . . .

I've shot TechPan in 120 roll. But the thing is everyday shooting is not like test conditions for me anyway.

LesDMess · 09-21-2013, 01:14 PM - **1 Like**

Originally posted by StefanMikes

Thank you very much Les.
What I found out myself so far is that a budget flatbed scanner with film scanning capability is not the answer. And I cannot afford a high quality film scanner.
It looks film scans from a good lab will have to do regarding color film and I decidedly want to re-create my wet darkroom for B&W films ;-)

You're very welcome.
No doubt that scans from good labs may give you results you can use.

StefanMikes · 09-21-2013, 02:32 PM

There's something you guys could help me resolving.
I thought more Mpx simply translated into a larger picture produced with the same output resolution. So 300 dpi print will be larger when you use more MPx. For screen, you won't be able to display more than the screen's resolution (a HD screen needs some 2 Mpx), Now, we are talking on 16, 24, 36 Mpx sensors. Isn't it so that some laws of physics result in worse crop quality if many more pixels are crammed into the same APS-C sensor? There must be some reasons for using full-frame DSLR, right?

stevebrot · 09-21-2013, 11:59 PM - **1 Like**

Originally posted by StefanMikes

There's something you guys could help me resolving.
I thought more Mpx simply translated into a larger picture produced with the same output resolution. So 300 dpi print will be larger when you use more MPx. For screen, you won't be able to display more than the screen's resolution (a HD screen needs some 2 Mpx), Now, we are talking on 16, 24, 36 Mpx sensors. Isn't it so that some laws of physics result in worse crop quality if many more pixels are crammed into the same APS-C sensor? There must be some reasons for using full-frame DSLR, right?

Don't over-think this.

More pixels is more pixels. Capture pixels ==> the same pixel dimensions on output.

Quality of pixels is another matter.

If this were the dSLR section of the site we could convert this thread to infinite length by throwing out suggestions of higher quality capture from a larger sensor. Instead, this is the film processing section so we can talk about the quality of scanner optical path and the real-world scan resolution and how they along with technical expertise determine the quality of the scanned image.

Steve

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09-21-2013, 12:48 PM	#46
LesDMess Pentaxian Join Date: May 2011 Location: Santa Cruz, CA Photos: Albums Posts: 3,235	Originally posted by tuco I scan on a 9000ED and I do see how it compares to my 36MP digital camera. Then you may know how my Techpan resolution results compare to the D800 . . .

09-21-2013, 12:50 PM	#47
tuco Pentaxian Join Date: Jul 2009 Location: Pugetopolis Posts: 11,026	Originally posted by LesDMess Then you may know how my Techpan resolution results compare to the D800 . . . I've shot TechPan in 120 roll. But the thing is everyday shooting is not like test conditions for me anyway.

09-21-2013, 01:14 PM - 1 Like	#48
LesDMess Pentaxian Join Date: May 2011 Location: Santa Cruz, CA Photos: Albums Posts: 3,235	Originally posted by StefanMikes Thank you very much Les. What I found out myself so far is that a budget flatbed scanner with film scanning capability is not the answer. And I cannot afford a high quality film scanner. It looks film scans from a good lab will have to do regarding color film and I decidedly want to re-create my wet darkroom for B&W films ;-) You're very welcome. No doubt that scans from good labs may give you results you can use.

09-21-2013, 02:32 PM	#49
StefanMikes Junior Member Join Date: Sep 2013 Location: Brwinow, Mazovia, Poland Photos: Gallery Posts: 46	There's something you guys could help me resolving. I thought more Mpx simply translated into a larger picture produced with the same output resolution. So 300 dpi print will be larger when you use more MPx. For screen, you won't be able to display more than the screen's resolution (a HD screen needs some 2 Mpx), Now, we are talking on 16, 24, 36 Mpx sensors. Isn't it so that some laws of physics result in worse crop quality if many more pixels are crammed into the same APS-C sensor? There must be some reasons for using full-frame DSLR, right?

09-21-2013, 11:59 PM - 1 Like	#50
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by StefanMikes There's something you guys could help me resolving. I thought more Mpx simply translated into a larger picture produced with the same output resolution. So 300 dpi print will be larger when you use more MPx. For screen, you won't be able to display more than the screen's resolution (a HD screen needs some 2 Mpx), Now, we are talking on 16, 24, 36 Mpx sensors. Isn't it so that some laws of physics result in worse crop quality if many more pixels are crammed into the same APS-C sensor? There must be some reasons for using full-frame DSLR, right? Don't over-think this. More pixels is more pixels. Capture pixels ==> the same pixel dimensions on output. Quality of pixels is another matter. If this were the dSLR section of the site we could convert this thread to infinite length by throwing out suggestions of higher quality capture from a larger sensor. Instead, this is the film processing section so we can talk about the quality of scanner optical path and the real-world scan resolution and how they along with technical expertise determine the quality of the scanned image. Steve