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Activity for Olin Lathrop‭

Type On... Excerpt Status Date
Comment Post #286820 @peter You may be on to something. The top picture looks a little worse (more staged and artificial) than the middle to me. That correlates with your bent wrist measure.
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about 2 months ago
Edit Post #286820 Initial revision about 2 months ago
Answer A: Why fold your hands, and center them, in portraits?
Why? Probably because the photographer told the subjects to do that. Personally, I don't think it looks that great. The bottom picture seems better to me than the others in that regard, but I can't really say why. In any case, you'd have to ask the photographer why he thinks this pose looks bett...
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about 2 months ago
Edit Post #284897 Post edited:
4 months ago
Comment Post #286510 Small handheld meters are quite common, and are hardly specialized pieces of equipment. They are available at any hardware store or home improvement store. Lots of people have them as part of their overall toolkit. Anyone doing home auto mechanics, or general home "handy" stuff is likely to have o...
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4 months ago
Edit Post #286508 Post edited:
4 months ago
Comment Post #286510 You are setting a very unusual and bad precedence. I didn't know the direct answer, and don't have one of those devices to find it myself. There is nothing wrong with explaining the process to find an answer. Such answers have never been considered invalid before. It could have been useful to the...
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4 months ago
Edit Post #286508 Initial revision 4 months ago
Question Unwarranted answer deletion
I wrote an answer a year ago to a question about how much power some consumer device uses. My answer was basically to measure it, gave a starting explanation of how to do that, and suggested to ask on the Electrical Engineering site with the results so that they would be properly interpreted. This ...
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4 months ago
Edit Post #285951 Initial revision 8 months ago
Answer A: How can a screenshot's file size ≥ original picture's file size?
Because of compression and different sizes. The original JPG image you are referring to is 1080 x 790 pixels in size, for a total of 777k pixels. Since the image is true color, there would be 3 bytes per pixel in uncompressed form. That would require 2.3 MB. However, the image file is only 131 ...
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8 months ago
Comment Post #285598 @#8049, that wasn't clear at the time. Photographic flashes are sometimes referred to as "speedlights" or "flashlights" in certain photographic contexts. Note also that the OP originally wrote "flash lights", not "flashlights".
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8 months ago
Edit Post #285598 Initial revision 8 months ago
Answer A: How go about photo'ing different flash lights' spots for comparison?
Different flashes will have different brightnesses, so you don't want to fix the complete exposure across all the pictures. You should fix the ISO to a good value for your camera. Set it to 400 if you're not sure what the best is. That should be pretty good with most cameras, and the important p...
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8 months ago
Edit Post #277413 Post edited:
10 months ago
Comment Post #285029 Things are a little different here, but most of the basic problems are the same. I have to go do some real work now, so don't have time for a detailed answer.
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10 months ago
Edit Post #284897 Initial revision 10 months ago
Answer A: What is the difference between dot and pixel?
Dots and pixels can be the same or different, depending on context. In a computer file, an image is usually made up of a rectangular array of color (or gray) values. We call those pixels, for "picture elements". "Dots" is usually used when trying to realize an image on physical media. Dots can ...
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10 months ago
Comment Post #281901 Considering the first films didn't have associated sound at all, dubbing doesn't make any sense.
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over 1 year ago
Edit Post #281897 Initial revision over 1 year ago
Answer A: Apply unsharp mask before or after downsizing to final size?
You could do it either way, but it is usually better to apply effects that depend on the size or resolution of the picture on the final-sized picture. This is assuming, of course, that proper anti-aliasing is always done along with any resolution reduction. The visual effect of blurring is depend...
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over 1 year ago
Edit Post #281607 Initial revision over 1 year ago
Answer A: Should near future smartphones replace professional cameras?
No. Dirt happens. Phones don't magically get dirty less than lenses of high end cameras. In fact, the opposite is true. Even a semi-serious camera lens has a cap or hood. This is a simple mechanical barrier that minimizes dirt accumulation when the lens is not in use. Your question is also ...
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over 1 year ago
Comment Post #280971 Your basic premise is incorrect, and there are many unspecified variables that would effect the answer in any case. This question should really be closed in its current state, but it would be better to clarify it instead. How wide a view? How fast across the picture is "movement"? How long a clip...
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over 1 year ago
Comment Post #280981 Whoever downvoted this, please explain what you think is wrong.
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over 1 year ago
Edit Post #280981 Initial revision over 1 year ago
Answer A: How long does the time lapse interval need to be to capture shadows during the middle of the day?
First, let's clear up a misconception. Shadows move faster at the beginning and end of the day This is not true. The angle to the sun changes at a constant rate during the day. That rate is easy to calculate, since it's 360°/day = 15°/hour. Shadows can appear to move faster or slow...
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over 1 year ago
Comment Post #280752 You could change the title of the question to make more sense outside the Photography site context, like *"Photo Contest - Clouds"*.
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over 1 year ago
Comment Post #75032 If you really want to revive this site from the dead, then any effort would be best spent getting the word out to the public that has photography questions.
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over 1 year ago
Comment Post #279084 I don't understand the downvote. If something is wrong, misleading, or you think what I said doesn't address the question, please explain. I can't fix what I don't know is broken.
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almost 2 years ago
Edit Post #279084 Initial revision almost 2 years ago
Answer A: Program to strip EXIF data from images
Instead of "stripping" EXIF data, think of it as making a copy that doesn't include it. My various image manipulation programs do that by default when writing JPG output files. This may have changed, but it used to be that JPG files didn't have provisions for meta-data, and I haven't updated the ...
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almost 2 years ago
Comment Post #278936 @Monica: I understand. Since you were wondering, I thought others might too, so I added explanation to the answer.
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almost 2 years ago
Edit Post #278936 Post edited:
almost 2 years ago
Edit Post #278955 Post edited:
almost 2 years ago
Edit Post #278955 Initial revision almost 2 years ago
Answer A: 2020 - November - Animals
Mountain Goats (Oreamnos americanus) Image Glacier National Park, Montana, August 1974. I came across these goats on the Garden Wall Trail about halfway from Logan Pass to Swiftcurrent Pass. They let me get close enough to take this picture with a 105 mm lens. I highly recommend the Gard...
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almost 2 years ago
Comment Post #278936 @Monica: This was taken with a long lens at short distance, so the background is very out of focus. The background was just more forest with patches of sunlight.
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almost 2 years ago
Comment Post #278951 Most of those birds aren't ducks, but Canada Geese (*Branta canadensis*). You did catch a few mallards over at right.
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almost 2 years ago
Edit Post #278936 Initial revision almost 2 years ago
Answer A: 2020 - November - Animals
Red Squirrel Image Tamiasciurus hudsonicus, Grand Tetons National Park, 21 June 1985. I was surprised how close this animal let me get. It was quite content to continue eating the pine cone, even when it filled the frame with a 300 mm lens. I was puzzled by the color, as it's one I don't e...
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almost 2 years ago
Edit Post #278389 Initial revision almost 2 years ago
Answer A: 2020 - October - Clouds
Thunderstorm over Mt Elden Image 18 Aug 2014 northeast of Flagstaff Arizona. I was on the east side of the ridge, so didn't get much warning about this thunderstorm coming from the west. A few minutes later, I got caught in quite a thunderstorm with hail. The hail was big enough to sting a...
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almost 2 years ago
Edit Post #277413 Post edited:
about 2 years ago
Edit Post #278022 Post edited:
about 2 years ago
Comment Post #278022 @10Rep: If you really need a particular shutter speed, then shutter priority makes sense. However, I usually keep my camera set to aperture priority. For one-offs where I want a "fast" shutter speed, I just twiddle the aperture dial until I get the desired shutter speed. If I were doing a whole sp...
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about 2 years ago
Edit Post #278022 Initial revision about 2 years ago
Answer A: What are shutter speed, ISO, and Aperture?
Shutter speed, ISO, and f-stop are the three variables you can control in the camera to adjust exposure. Changes in one can be offset by changes in another to keep the same exposure. However, changes in each of these three parameters have different influences on the look of the overall picture, eve...
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about 2 years ago
Comment Post #276862 It was well published what part of the sky the comet would appear at what time. I noticed that the brightness decreased rapidly over the next few nights after this picture was taken. A few days later when there was clear sky again, I couldn't find the comet at all.
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about 2 years ago
Comment Post #277201 @Peter: The reflection is quite close to head on. Note how the reflection of the top candle is below the original, and of the bottom candles above. The head-on angle vertically is about halfway up the big candle. There is a small angle due to the flame being above that, and an even smaller one due...
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about 2 years ago
Edit Post #277413 Initial revision about 2 years ago
Answer A: How to capture a competition rifle shooter with a bullet in flight?
Do the math. Let's say the bullet in question is travelling at about the speed of sound, around 330 m/s. That means it moves 1 meter in 3 ms, or about a foot in 1 ms. Now look at the speed of "prosumer" flashes. 1 ms for the flash duration would not be out of the ordinary, especially for a br...
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about 2 years ago
Edit Post #277201 Post edited:
about 2 years ago
Edit Post #277203 Initial revision about 2 years ago
Answer A: 2020 - August - The Moon
Obligatory shot of just the moon Image Yup, it's the moon. I included this to document the exposure. Getting the moon right is tricky, since it's a small but bright object in the middle of a dark background. Anything with auto-exposure is going to mess this up, unless you have a very long le...
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about 2 years ago
Edit Post #277202 Initial revision about 2 years ago
Answer A: 2020 - August - The Moon
Moon over saguaro Image 16 Aug 2011, in the White Tank Mountains just west of Phoenix Arizona, 300 mm lens, 6:47 local time. The moon was nearly full, and low in the west around dawn. I wanted the moon to look as large as possible relative to the cactus, so a long focal length was needed. ...
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about 2 years ago
Comment Post #277196 Sorry, but I think this is missing the point somewhat. It seems the flames are blurry not because of motion, but because of over-exposure. This is made worse by the small diameter of the cell phone lens causing more diffraction, and more bleed-over due to very tight spacing of sensels on the tiny s...
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about 2 years ago
Edit Post #277201 Initial revision about 2 years ago
Answer A: How do I take crisp pictures of flames at night (with a cell phone)?
The problems The basic problem is that the flames are small bright things in what is otherwise a dark scene. The automatic exposure system then messes up because it strives to make the average come out right. Some exposure systems do look at highlights and adjust somewhat, but in most ordinary...
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about 2 years ago
Comment Post #277043 @Monica: Cell phone cameras have come a long way from the toys they were just a decade ago. However, sky photography usually requires careful manual settings, which are often not available on something dumbed down with low intimidation factor being the highest design criterion. Asking about night s...
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about 2 years ago
Comment Post #275855 This post popped to the top due to an edit by Pnuts. However, I looked at the edit history and the before and after posts look the same. What is going on here?
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about 2 years ago
Edit Post #276862 Initial revision about 2 years ago
Answer A: 2020 - July - B&W Horizons
Comet Neowise Groton Massachusetts, 20 July 2020, 22:19. 135 mm, full frame (24 x 36 mm) sensor, 4 seconds.
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about 2 years ago
Edit Post #276841 Initial revision about 2 years ago
Answer A: Link to other Community contests?
While there is a point in linking from SE to here, the reverse makes no sense. We want people finding this place from elsewhere. We don't want to help people go elsewhere if they happened to stumble onto this place first. Also, as a general principle, this site needs to stand on its own. If it ...
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about 2 years ago
Edit Post #276768 Post edited:
about 2 years ago
Comment Post #276768 @Hueco: It's my own IMAGE_EDIT program. Actually it has two types of brightening/darkening while keeping the ends of the range the same. The log brightening I used is the more general. There is also something that has a stronger effect on the dark end of the range.
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about 2 years ago
Edit Post #276768 Post edited:
about 2 years ago
Edit Post #276768 Post edited:
about 2 years ago
Edit Post #276768 Initial revision about 2 years ago
Answer A: Critique Request - Landscape - Composition
Here is another totally different derivative of the original: The waterfall and the swirling leaves are really two separate features that happen to be in the same original photograph. Trying to show both in one picture makes the picture confusing by lacking a point, and neither will look good...
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about 2 years ago
Comment Post #276715 Confirmed in Edge too.
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about 2 years ago
Edit Post #276546 Post edited:
about 2 years ago
Edit Post #276577 Initial revision about 2 years ago
Answer A: 2020 - July - B&W Horizons
Storm over Mesa Verde Image alt text This was taken 16 Aug 2018 from the side of the highway a little west of Mancos Colorado. The storm clouds looked so dramatic that I stopped to take a picture.
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about 2 years ago
Edit Post #276546 Post edited:
about 2 years ago
Edit Post #276546 Initial revision about 2 years ago
Answer A: How can I reduce blurriness when taking a photo in the dark, using only UV light?
Possible problems, with their solutions, are: Inability to focus properly in the dark. Put the camera on a tripod. Focus and compose with the lights on. Depending on the camera, you may have to switch it to manual focus mode. If your camera is too dumbed down to allow that, then it is inappr...
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about 2 years ago
Edit Post #276445 Initial revision about 2 years ago
Answer A: Which posts or types of posts to migrate in?
Which posts or types of posts to migrate in? None of them. For this site to be successful, it needs to have activity here. Copying posts from SE only creates the illusion of activity, then becomes worse than useless when people realize after reading the whole question, that it was was asked an...
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about 2 years ago
Edit Post #276321 Initial revision over 2 years ago
Answer A: Critique Request - Landscape - Composition
My first response is that a really like this picture. However, there are some details I'd probably change, or at least experiment with. Here is a scaled down original for comparison with subsequent versions: Image alt text The picture looks a little dingy, at least on my monitor. The fir...
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over 2 years ago
Comment Post #275904 I keep seeing this question and think how I could list 100 different things. Then I realize this question can never be fully answered, and it feels too overwhelming to even start. Perhaps the reason you're not getting any answers is that others go thru a similar thought process.
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over 2 years ago
Comment Post #275904 This question seems like the poster case of "too broad". I realize you're trying to generate help material, but this might give the wrong idea of what kinds of questions are allowed. That makes me wonder how group-edited help can be created here. SE used to handle this with community wiki, which n...
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over 2 years ago