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can you walk around with these filters attached? I don't know how much the Cokin holder grips the filter. …

Note: This is the method he uses for telescope filters. To mount a thin film filter to a camera lens, he still mounts the filter between 2 sheets of foamcore board. …

Then, I have a small handful of 67mm-to-77mm rings that I keep with my filters. … See also: How can I keep lens filters and other attachments from sticking on the lens? …

There are plenty of situations where it might make sense to use color correction filters. See also: Are there reasons to use colour filters with digital cameras? … That's where ND filters come in. Think of ND filters as the real-world exposure control slider in Photoshop. …

While it could be done numerically without problem, it's probably not how the specified range of light reduction is arrived at for photographic filters. … So I suspect that the specs are something along the following lines: The lower bound, ~1.5 stops as stated by Hoya for typical polarizers, and ⅔ stops for their high-transmission filters, is the best-case …

Perhaps the linked article was changed after the question was posed here, but the caption under the image states, Wasiczek’s backgrounds are as interesting as her flowers. Here, she employs her mi …

Yes, stacking filters will cumulatively have an effect on image quality, but noticeably less so with good filters. … In terms of light leaking between the filters, screw-in filters are better in this regard. …

If you are simply looking for light reduction (that is, you are not looking to filter for H-α wavelengths, for example), you can create your own slide-on front mount solar filter cheaply, using Baader …

With a filter holder, you have to be careful to shield the tops, bottoms, and sides of the filters from stray light entering between the filters. … Every flat glass (or resin) surface in front a lens is a potential reflection problem, and that problem is exacerbated if light can enter from the sides, between or behind filters. …

This filter is not fundamentally different than other ND filters. … It is a ND filter in the optical range, that just happens to extend its cutoff frequency further into the IR range than "typical" ND filters. …

Furthermore, you can understand how the demonstrated dip technique cannot easily create filters such as reverse-ND grad strip filters, or apodization filters. … Almost certainly, you'd want to use glass ND filters rather than optical resin filters. …

This photo is definitely a composite. You can't see the Milky Way until some time around astronomical twilight (when the sun is 12°–18° below the horizon). The post-sunset clouds in the picture appe …

Recommendation If you are primarily going to shoot with a normal- to wide-angle lens, I suggest getting a kit of 1–, 2–, and 3–stop ND grad soft rectangular filters. … This is just one example of how you can creatively combine ND grad filters. …

Is the Cokin 173 filter just a backwards CPL? No. The effect is similar to mounting your polarizer backwards, but much more pronounced on the Varicolor filter. Here is what my Hoya HD CPL looks …

This filter app can replace a large collection of ND grad filters, sunrise/sunset filters, reverse ND grads, etc., for most typical uses of graduated filters. … Many times, people confuse the filters with a video matte box, and assume I'm shooting video. People tend to stop and ask questions about the filters. …