Showing posts with label filter. Show all posts
Showing posts with label filter. Show all posts

Monday, October 22, 2018

Iris Simplified


Topaz Simplify is probably my favorite filter. With this photo, I used a double dose. Simplify has numerous presets which you can modify with sliders (and I often do) but this one uses two different presets in layers with the blending of the upper one set to "Luminance" and opacity reduced to 60%. I rather like the effect. Click on the image to see it larger.

Saturday, October 13, 2018

Artistic License


Morning Light

Sometimes the image is all about light, shape, color and too much detail detracts from what I want to 'say' in the image. When I get one of those images I reach into my plugin toolbox and pull out Topaz's Simplifier. I have been using it for years. It started life as BUZZ Simplifier and was put out by a British company whose name I can't recall at the moment. That company went belly up and for a while, I couldn't get updates then Topaz stepped in with their version.

Simplifier groups pixels of similar tone & hue and averages them into clumps. The number of pixels averaged (and thus the size of the clumps of color) is controlled with a slider that goes from very small clumps to almost a posterized image. The original BUZZ filter would go so far that it averaged the entire image but there really isn't much use for that and if you want to I think there is a built-in tool in PS that will do that. The default setting on Topaz's version is higher (bigger clumps) than I usually want and I can't recall ever going higher than the default.

The result is an image that looks a lot like a painting because it does pretty much what painters (except for photorealistic painters) do. I like the effect on some images. I have occasionally been told in the past that I shouldn't call these photographs anymore because they don't 'look photographic'. I don't really care if others prefer to think of them in other terms. I make "images" that I like, that express what I want to express about the subject and render them by whatever means best expresses what I want to show the world. To me, they are still photographs. You may refer to them any way you wish. The terms aren't important, the image is what is important. Here is a group of recent creations using both the camera and the computer. I hope you enjoy them visually and don't get hung up in what to call them.

"OPEN"

"Hay Tedder"

Gold over Gold

"Be Mine"

Click on an image to see it larger. Prints are available. Email me telling me what you want (image/size/your location etc.) and I will reply with a price quote that includes shipping. Please respect my copyright and do not repost any part of this blog elsewhere without my express permission.

Monday, September 10, 2018

K&F Concept Variable ND Filter Review

I have been looking at variable Neutral Density filters for a while. I use ND filters when shooting flowing water and occasionally for other shots where I want to reduce the DOF and the light is too bright to open up all the way. I have a set of 3" square resin ND filters that I bought about a decade ago but they are cumbersome to carry around and use. I also find that the higher density ones impart a significant brownish color cast to my images. No biggy when working in B&W but a nuisance with color images.

Enter the K&F Concept Variable ND filter that combines a whole range of ND filters into one. Most of the ones I looked at were rather expensive (as in three figures) which is a bit much for a retired guy who isn't making money from his photography and has only occasional use for an ND anyway so the $19.99 price of the K&F filter on Amazon looked like a real deal especially since I could return it if it was a bust. It isn't. I'm sure that in lab testing a $100+ filter might prove to be somewhat better but for my limited needs, the K&F will do just fine.

My test was pretty simple. I mounted my EOS M3 with the 18-55mm on a tripod and shot a photo of my barn and tractor (nothing artistic or even pretty, it is just a test). The ISO was set at 100 and the mode was aperture priority. I then mounted the filter and set it on the "MIN" mark and shot another. I took a series of photos moving the filter setting 2 dots toward the "MAX" mark between each except for the next to the last when I moved it all the way to MAX. As you can see I had a problem there. It shut down the light unevenly and so severely that the exposure went all the way to 25 sec. Finally, recognizing that was a problem, I set it back to the dot just before MAX and shot one more. The results are below.
If you click on the image above, you can see it full sized as it appeared on my screen.

Thoughts on the results: I was concerned that like my square resin filters I might get a color cast. I didn't. That is the first plus. The filter appears to be very well made, is small and convenient compared to the square resin filter set and the associated holders. Another big plus. Those two things mean I will actually carry and use this more than I ever did the set of square filters. The difference in exposure times from 1/25th second unfiltered to two and a half seconds is more than adequate for my needs. I just have to remember to use the dots and not set it on MAX itself. Examining the images at 100% I saw no degradation of the autofocus between the unfiltered image and the others. When I first mounted the filter the setting marks were on the bottom but because the front turns 360° freely (it is truly variable, not click stops or detents) I was able to turn it so they were on the top and because of the way VNDs work it was fine. I will add my own little white indicator mark to the opposite side of the back ring.

Variable ND filters work by crossing the planes of two polarizers. The nearer the planes get to 90° to one another, the less light gets through. Theoretically, if the light was perfectly polarized and the planes were at precisely 90°, no light would get through. I expect that the X on the MAX setting is the result of small imperfections in the filtration and/or the planes of polarization being slightly off. I'm not going to spend hundreds on some of the more expensive VND filters to find out whether they do the same.

If you are in the market for a variable ND filter and don't have big bucks to throw at it, the K&F Concepts filter is a winner for the photographer on a budget IMO.

No one has offered me anything for doing this review. The Amazon seller did ask that I review my purchase on that site. This is my honest assessment of the product.