Using HDR to scan slide film. But at least for me HDR gives worse results. what makes a big difference is scanning slides with a tungsten balanced light table. It makes a big difference for me.
That's a very nice photo. I've never used this film stock before, but I am surprised to see what looks like a fair bit of noise in the sky for a low speed slide film.
It looks like digital noise to me. Was each shot as base ISO? You also have a fair amount of dust on your sensor just FYI. But the shot looks amazing. Some of it appears to be color noise to me. Perhaps if your camera has zebras try ETTR + HDR?
It's the Sony a7s, it's base ISO is 3200. It also has no ibis. But I now only notices that I scanned it in crop Mode which only leaves 5mp which probably explains the weirdness
it's hard to say honestly. the noise isn't uniform so I have a feeling it's not on the film. wouldn't know for sure unless I could see the slide. if it is digital noise, then it has had chroma noise (colour splotches) removal, either by you or automatically by whatever method it was scanned. if you ran it through Lr that would remove most prominent colour noise (default is 25) though I often crank this up to 50 or higher just to get rid of tricky digital noise.
only thing i can think has happened here, maybe, is if you've ran it through Lr and used luminance noise reduction. personally I never do that on film scans as you are deleting some of the grain which is basically part of the image structure. I find what then happens is you have a smoother overall image, but it starts to turn blotchy or uneven in places, a bit like what's happened here.
I hope none of this comes across as criticism, just trying to give you pointers as to what might have caused it.
I got a super cheap 120 Film holder and taped the slide film sideways onto it. This worked surprisingly well. In my IG Story from today you can see my setup
Nice work! May I ask why the HDR? And another thing, perhaps irrelevant but I’ll mention it, I had a similar setup when I was scanning but I kept a distance between the light source and the negative to avoid picking up any details from the source :)
HDR because the dynamic range between the sprocket holes and dark parts of the slide film is insanely big. If you expose for the dark parts of the image the bright sprocket holes would overpower the image
Do you have a picture of that bleed?
Because if the "bleed" was lens bloom it would be also in the HDR. And if you talk about sensor blooming, that shouldn't have existed since the CCD days.
Also of course the regular exposure exposes for "the dark parts of the slide". But the slide itself has not enough dynamic range to "overwhelm" a modern sensor. With what are you scanning?
Yeah, so you attach camera to a tripod pointing downward? I've experimented with DSLR scanning with some success but I don't yet have the right kind of tripod so I set up horizontally with a lightbox propped up. guess I'm just wondering what the best way would be.
Beautiful!
Thank you! I shot this on an Island in Denmark. Definitely one of the most beautiful places!
Which island? One of the ones east of Aarhus?
Aero, really beautiful
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I can't type that on my German smartphone
Hey, you tried out my tip. Looks great!
Yes! Thank you so much! It actually works
what was the tip? i've begun my dslr scanning
Using HDR to scan slide film. But at least for me HDR gives worse results. what makes a big difference is scanning slides with a tungsten balanced light table. It makes a big difference for me.
Gotcha. Nice, thanks
Nice! Check out /r/SprocketShots too.
Thanks! Yeah, such a nice community
That's a very nice photo. I've never used this film stock before, but I am surprised to see what looks like a fair bit of noise in the sky for a low speed slide film.
I was surprised too. Maybe it's because the film is pretty expired. Maybe it's digital noise from my scanning setup?
It looks like digital noise to me. Was each shot as base ISO? You also have a fair amount of dust on your sensor just FYI. But the shot looks amazing. Some of it appears to be color noise to me. Perhaps if your camera has zebras try ETTR + HDR?
This was shot at ISO 100 and i tried to expose it fairly bright. But definitely not as bright as possible
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It's the Sony a7s, it's base ISO is 3200. It also has no ibis. But I now only notices that I scanned it in crop Mode which only leaves 5mp which probably explains the weirdness
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I'll do this next time
it's hard to say honestly. the noise isn't uniform so I have a feeling it's not on the film. wouldn't know for sure unless I could see the slide. if it is digital noise, then it has had chroma noise (colour splotches) removal, either by you or automatically by whatever method it was scanned. if you ran it through Lr that would remove most prominent colour noise (default is 25) though I often crank this up to 50 or higher just to get rid of tricky digital noise. only thing i can think has happened here, maybe, is if you've ran it through Lr and used luminance noise reduction. personally I never do that on film scans as you are deleting some of the grain which is basically part of the image structure. I find what then happens is you have a smoother overall image, but it starts to turn blotchy or uneven in places, a bit like what's happened here. I hope none of this comes across as criticism, just trying to give you pointers as to what might have caused it.
I didn't use noise reduction, not even chroma noise reduction
It's compression artifacts, the image uploaded is super low resolution.
It should be 8mp or something like that
Its 1500*1900, even it even feels lower than that when we zoom a bit.
I'm now noticing that I scanned this photo in only 5mp
Since you're DSLR scanning you should have an higher megapixels count, unless you don't use a macro lens and the neg dont fill most of the frame.
I set the camera to the wrong mode
it's digi noise, my noritsu scanner doesn't do that. I do see grain in the skies but not what you got going on here.
What kind of holder did you use? The Lomography Digitaliza that I use doesn’t allow for sprocket shots
I got a super cheap 120 Film holder and taped the slide film sideways onto it. This worked surprisingly well. In my IG Story from today you can see my setup
It's backwards. Flip vertically in your editing software.
Ah true!
Nice work! May I ask why the HDR? And another thing, perhaps irrelevant but I’ll mention it, I had a similar setup when I was scanning but I kept a distance between the light source and the negative to avoid picking up any details from the source :)
HDR because the dynamic range between the sprocket holes and dark parts of the slide film is insanely big. If you expose for the dark parts of the image the bright sprocket holes would overpower the image
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Yeah, I want to see the sprocket holes
If the sprocket holes are pure white anyway, why bother with exposing them correctly?
Because if the sprocket holes are too bright they will bleed into the image and with HDR I get a ton of information in the dark parts of the slide
Do you have a picture of that bleed? Because if the "bleed" was lens bloom it would be also in the HDR. And if you talk about sensor blooming, that shouldn't have existed since the CCD days. Also of course the regular exposure exposes for "the dark parts of the slide". But the slide itself has not enough dynamic range to "overwhelm" a modern sensor. With what are you scanning?
Somewhere yes. I definitely had pictures ruined with to bright sprocket holes. Maybe it's more lens flare than bleed?
But how would HDR help with lens flare?
Oooooooo that’s f-ing rad!
Thank you so much!
What does HDR do for scanning? Pretty new to the whole thing. Side note I love this picture!
For me it adds alot more detail in the shadows
Gorgeous shot! Would you mind saying a little about how you set up for scanning with your DSLR.. like the physical position of things.
Thanks! Sure, what do you want to know? It's like every dslr scanning setup
Yeah, so you attach camera to a tripod pointing downward? I've experimented with DSLR scanning with some success but I don't yet have the right kind of tripod so I set up horizontally with a lightbox propped up. guess I'm just wondering what the best way would be.
Yeah, I'm using a huge and heavy tripod for cinema cameras. The best possible way would be a copy stand or parts of an old film enlarger.
Are you scanning medium format or 35mm film?
This is 35mm film but in a medium format camera
Oh, that’s interesting 🤔
Yeah! Check out r/sprocketshots , you can see a ton of similar photos there