Bokeh lens filters5/7/2023 ![]() Strength and sensitivity of the effect may then be varied by applying changes to the B/W copy in the alpha-channel. ![]() I don’t know how the digital Otron effect is implemented in different software solutions, but one way to make it effective only in/around bright areas of the image is to make a copy of the image, overexpose it, blur it, and take a B/W copy of the blurred image as the alpha-channel for blending with the original image. I think I’ll give some NiSi filters a try as well. But indeed, the achievable looks may be quite nice. I don’t like the idea of worsening the optical qualities of a good lens either. Sony FE lenses: Our guide to ultra wide angle lenses.Sony FE lenses: Our comprehensive and independent guide.More Samples Sony A7III | 28mm | Tiffen Glimmerglass1 Sony A7III | 28mm | Tiffen Glimmerglass1 Sony A7III | 28mm | Tiffen Glimmerglass1 Sony A7III | Laowa 35mm 0.95 | f/0.95 | K&F Diffusion 1/2 Sony A7III | Laowa 35mm 0.95 | f/0.95 | K&F Diffusion 1/2 Sony A7III | Laowa 35mm 0.95 | f/0.95 | K&F Diffusion 1/2 Sony A7III | Laowa 35mm 0.95 | f/2.8 | K&F Diffusion 1/2 Sony A7III | Laowa 35mm 0.95 | f/0.95 | K&F Diffusion 1/2 Further Reading You can order these K&F Black Mist/Diffusion filters from / and the Tiffen Glimmerglass from / or B&H (affiliate links) The Glimmerglass1 was more to my liking as it really seemed to only affect the parts of the picture it is supposed to and I may keep it for the next time I take pictures at a fair or do automotive photography during the blue hour. The number of pictures where I thought it actually added something to them was rather small and life is definitely too short to always take a picture with and without filter to blend them together in post afterwards. The foggy effect these filters give at night isn’t overly easy to replicate in post – at least for me – but in many situations the K&F 1/2 also yielded unexpected and/or undesirable (side) effects. I have never been a huge fan of these so called “effect filters” but my friend Simeon Kolev showed a few cool pictures where he used these Diffusion filters to good effect, so I decided to give it a try. Now in this scene the effect is most subtle, but also looks most appealing to me. Sony A7III | 28mm lens | Tiffen Glimmerglass1 ![]() I tried the K&F 1/2 as well as the Tiffen Glimmerglass1, so let’s have a look what they can do. Filters with the same nominal strength from different manufacturers do not necessarily offer the same degree of the effect though, which makes it especially hard to find the best one for your needs. These filters are made by several manufacturers these days and they come in different strengths. ![]() Taking pictures in the dark with point light sources in the frame the effect is also similar to what you get when shooting analogue Cinestill 800T film. Sometimes the result is similar to what the Orton effect is achieving, the major difference is, that the Orton effect affects bright and dark parts of the frame alike, whereas the diffusion filters emphasize the brighter parts. Many of the older fast Leica lenses are famous for this effect. These filters are supposed to add a bit of glow to bright parts of the picture, similar to lenses with undercorrected spherical aberration. Looking closely at it the filter looks like a lens’ front element that hasn’t been cleaned in a very long time. What does a diffusion/black mist filter do? K&F Concept Black Diffusion 1/2 close up
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