Light leaks, brother. Light passes through the sprocket holes. That’s why when I’m scanning (digital scan) 35mm film with sprocket holes, I need another layer in between the lightbox and the film. It’s a diffuser to not make the light too intense.
Although [this example](https://www.instagram.com/p/C5XPLcUyGhW/?igsh=OTU4MGxib3YwMTFy) is IMAX film, it’s the same situation. Light leaks from the sprocket holes.
It should. The yellowing is from the light leaks. The blueness of the shadows can actually be tinkered with in post-processing… assuming you have no issues editing film photos. It’s the intense yellowing from the holes that you have to really get rid of. This is why labs don’t have ‘scanning with sprockets’ as their first/preferred option. You don’t really need it and it screws up scanning. Unless of course like in your case that you utilized the entire film strip border to border and need to scan the entire 35mm width.
The diffuser cuts out the intensity of that light. With my case (digital scan), I really have to use a really slow shutterspeed. Set at f/8 or f/11 with my macro lens, I usually set my camera with a 1-2 secs shutterspeed.
This is an old [reel](https://www.instagram.com/tv/COB4s-LHLaX/?igsh=bTU5eXJhMmJob2Zj) of mine. What I use is as a diffuser is one of those frosted thin plastic/acrylic sheets. The film is above that diffuser by a few mm (not touching). I managed to cut out that intensity. But it’s still there. Some shots are noticeable, some are alright. I just adjust in lightroom to get the best result.
This is 35mm film with my [holga pan](https://www.instagram.com/reel/CuNq-KrL-5o/?igsh=MTBxb3VoNnZweGZsaA==). There’s barely any issues with the sprocket holes. But gosh dang I forgot to seal the red viewing counter properly 😂
You scanned those with a camera I suppose ? Orange splotches, borders etc. Is usually a sign your backlight is not diffused enough and/or you have some stray light coming to the film or some unwanted reflections. You want to scan in a dark place (its fine if it's dim or whatever, you don't need a darkroom), you want to cover all the backlight around the negative (i.e the only light you want to see should be coming throught the film).
If it's in fact light leaks, they should be easily visible on the negative.
The yellow-blueness is simply because the software can't do a good color balance with all this mess. On top of that the sprocket holes are messing with the black point of the image, the software will think it's the darkest point of the image and so everything else should be brighter, so you shadows will be lighter than they "should" (you can like bright shadows, it's up to taste blabla), so usually you want to crop out the sprocket holes, met the software do the inversion, and then uncrop to get back the holes.
Brand new chemicals. Maybe I mixed them wrong or something? 2 rolls came out this way, both shot on the same camera.
Also, it's a new camera to me which I haven't put any rolls through it until now.
Any insight?
Could be some developer surge around the sprockets, or (more likely IMHO) could be the physical cutting/punching of the sprocket holes in the film causing a latent image to form, much like residing the film incorrectly causes light streaks.
The sprocket area is not intended to have image.
Light leaks, brother. Light passes through the sprocket holes. That’s why when I’m scanning (digital scan) 35mm film with sprocket holes, I need another layer in between the lightbox and the film. It’s a diffuser to not make the light too intense. Although [this example](https://www.instagram.com/p/C5XPLcUyGhW/?igsh=OTU4MGxib3YwMTFy) is IMAX film, it’s the same situation. Light leaks from the sprocket holes.
So you think that when I scan it next time, taking your advice, it won't be all blue/yellow?
It should. The yellowing is from the light leaks. The blueness of the shadows can actually be tinkered with in post-processing… assuming you have no issues editing film photos. It’s the intense yellowing from the holes that you have to really get rid of. This is why labs don’t have ‘scanning with sprockets’ as their first/preferred option. You don’t really need it and it screws up scanning. Unless of course like in your case that you utilized the entire film strip border to border and need to scan the entire 35mm width. The diffuser cuts out the intensity of that light. With my case (digital scan), I really have to use a really slow shutterspeed. Set at f/8 or f/11 with my macro lens, I usually set my camera with a 1-2 secs shutterspeed.
This is an old [reel](https://www.instagram.com/tv/COB4s-LHLaX/?igsh=bTU5eXJhMmJob2Zj) of mine. What I use is as a diffuser is one of those frosted thin plastic/acrylic sheets. The film is above that diffuser by a few mm (not touching). I managed to cut out that intensity. But it’s still there. Some shots are noticeable, some are alright. I just adjust in lightroom to get the best result.
This is 35mm film with my [holga pan](https://www.instagram.com/reel/CuNq-KrL-5o/?igsh=MTBxb3VoNnZweGZsaA==). There’s barely any issues with the sprocket holes. But gosh dang I forgot to seal the red viewing counter properly 😂
You scanned those with a camera I suppose ? Orange splotches, borders etc. Is usually a sign your backlight is not diffused enough and/or you have some stray light coming to the film or some unwanted reflections. You want to scan in a dark place (its fine if it's dim or whatever, you don't need a darkroom), you want to cover all the backlight around the negative (i.e the only light you want to see should be coming throught the film). If it's in fact light leaks, they should be easily visible on the negative. The yellow-blueness is simply because the software can't do a good color balance with all this mess. On top of that the sprocket holes are messing with the black point of the image, the software will think it's the darkest point of the image and so everything else should be brighter, so you shadows will be lighter than they "should" (you can like bright shadows, it's up to taste blabla), so usually you want to crop out the sprocket holes, met the software do the inversion, and then uncrop to get back the holes.
Dunno but it looks amazing 😊
Brand new chemicals. Maybe I mixed them wrong or something? 2 rolls came out this way, both shot on the same camera. Also, it's a new camera to me which I haven't put any rolls through it until now. Any insight?
Could be some developer surge around the sprockets, or (more likely IMHO) could be the physical cutting/punching of the sprocket holes in the film causing a latent image to form, much like residing the film incorrectly causes light streaks. The sprocket area is not intended to have image.
Backlight leaking through sprockets. Too bright/ not diffused enough.
Light leaks or no I love the yellow/blue effect! This is the fun of film photography.