Hi, I have been trying to figure out why my pictures have a weird cast to them. I do not have a dedicated macro lens because I don’t feel like shelling out the cash, so I got the cheaper solution in macro filters. I’m using the Kaiser Slimlite Plano 5000, with a 50mm lens(with a +2 and +4 macro filter) My negatives when converted seem to have an orange cast in the middle and then some blue spots either just left, just right, or both sides.
Close-up lenses often come with less than optimal technical quality and stacking two lenses can amplify the shortcomings.
I’d recommend making sure that no stray light can enter between the negative and the lens. This helps to prevent flare, which might be the cause of the effects you mention. You can reduce stray light by doing the following:
- add to your light panel some kind of mask that blocks all light, except for what you need to light the negative.
- shoot in the dark
- add a cardboard tube as a lens hood, it should extend from the lens to the negative, something like this: Sony A7 II | 90mm macro | EFH | RALENO LED Video Light | Anti-static record brushes | DIY-Reprostativ copy stand | Tetenol Antistatic cloth - Album on Imgur
Please let us know of the results you get with the above.