Comment by Caleb on LIDAR burnout; ways to check for damaging infrared lasers...
@dgatwood That's true, but the cheaper ones need to be "charged" with visible light before you use them, which doesn't seem so convenient. I'm not sure that a detection card of any sort would really be...
View ArticleComment by Caleb on Is it reasonable to use a ring flash that encircles the...
Photographers often use ring flashes exactly because they want the narrow band of shadow surrounding the subject that's characteristic of these lights when the subject is close to the background.
View ArticleComment by Caleb on How can I download photos from multiple Canon 6D cameras...
Keep in mind that there's often so much radio traffic flying around in a convention hall that connecting to a 6D set up as a hotspot is going to be pretty unreliable, and putting the cameras on the...
View ArticleComment by Caleb on What does it mean to "kill the ambient"?
ND filters and ISO are other tools that can help reduce ambient light. They reduce flash too, of course, but you can add flash power to compensate. Also: most of your links are broken.
View ArticleComment by Caleb on What quality can be expected from a flatbed scanner and...
@xiota That's an important point -- the high resolution is really there for scanning film, not prints. As I said, I'm not recommending any specific model, just giving a quick look at what's available....
View ArticleComment by Caleb on What is the best shutter speed to use with a speedlight...
Start here: strobist.blogspot.com/2006/03/lighting-101.html
View ArticleComment by Caleb on Why do DSLRs have to bounce their mirror when taking...
I don't think the have part is important -- the OP incorrectly assumes that it's necessary, xenoid's answer explains why it's useful, and Michael's answer explains that it's not necessary. Between...
View ArticleComment by Caleb on What programming languages are used to write camera...
This seems off topic... the language(s) used to write the firmware would have little impact even if you were trying to write software that runs on the camera, and even less impact on using the camera...
View ArticleComment by Caleb on Canon EOS 5D Mark 1 needs too much light?
From the Is it plugged in? file... is there a filter on the lens?
View ArticleAnswer by Caleb for why is the subject blurry and the back ground clear
her face was blurred but the background was clearShort answer: You focussed on the wrong thing, or you focussed on the right thing but then moved the camera without refocussing.Longer answer: The...
View ArticleAnswer by Caleb for Do photographs need a theme to be presented together as a...
Does Photography Need A Theme To Be Presented Together?Definitely not. I've been to plenty of exhibitions where the only theme is that the photos were all taken by the same photographer. In other...
View ArticleAnswer by Caleb for When is color over done
My question: How does one judge color to be "correct".You can determine whether colors are correct (in the sense of being accurate) using a color/white balance calibration chart. Take a photo of the...
View ArticleAnswer by Caleb for Is it possible to do darkroom contact prints from a...
Will the pixels be visible ? Will the thickness of the screen glass prevent the image from being in focus ?Some resin-based 3D printers work on a similar principle: an LCD monitor mounted under the...
View ArticleAnswer by Caleb for What wide-angle lens for MFT?
That's the strange part. I set up both cameras on a tripod, shooting into a room. I used the point and shoot, a Panasonic DMC-ZS19, and the 4/3 panasonic Lumix GX1. There was no doubt that the point...
View ArticleAnswer by Caleb for What equipment did film photographers obsess over?
Google Groups has a searchable Usenet archive going back to 1995, so you can see what people were talking about in rec.photo.equipment on Nov. 23, 1995. It's largely the same list of things that people...
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Answer by Caleb for How can I operate a modern camera when I must do so...
How can I operate a modern camera when I must do so left-handed?Add a battery grip and hold the camera upside down. This puts the shutter release and thumbwheel on the battery grip under your index...
View ArticleAnswer by Caleb for Canon EF-S 10-18mm IS STM on a Canon 1300D
EF-S should be OK, am I right?Your camera has an EF-S mount, so it'll work with any EF-S lens, including this one.Will there be any undesirable cropping?No. There won't even be any desirable...
View ArticleAnswer by Caleb for Given an image how to identify whether it is RAW file or not
Once I've a JPEG photograph image file, how can I find out whether it is a RAW file or not?If you have a JPEG file, then it is not a RAW file.RAW isn't a single format, but rather a collective name for...
View ArticleAnswer by Caleb for Multiple use of Electric contacts cleaner
i applied the spray and it returned to work normally but after 2-3 days the problem comes back.In order for that stuff to work, you have to get it on the actual contacts. If you didn't open the camera...
View ArticleAnswer by Caleb for Take a picture and generate a Bar code to add the picture...
I need to generate and adding at the same time that i trigger the photo a Bar Code with, is it posible?It's possible, but it might be more trouble than you're willing to go to. You could print a series...
View ArticleAnswer by Caleb for How do I activate Depth of Field Preview on a Canon Eos 100?
Can someone either confirm it exists or tell me how?Page 61 of the EOS 100 user manual explains how to set the various custom functions. There's a list of 7 different settings you can turn on, and (as...
View ArticleAnswer by Caleb for Downloading photos problem
Photos are on the card yet the card reader says no photos to show on this deviceIf your camera can see the photos, then you might try connecting the camera to the computer and downloading the photos...
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Answer by Caleb for What is the relationship between lens diameter and exposure?
What is the relationship between lens diameter and exposure?For a given focal length, a lens with a larger front element will generally be faster. That is, it'll have a larger maximum aperture,...
View ArticleAnswer by Caleb for Mirrorless cameras with a film look?
David Hobby, of strobist.com fame, has written a great review of the Fujifilm X100s, which has settings that simulate several classic Fujifilm films. The X100s is an older, discontinued model, but the...
View ArticleAnswer by Caleb for How do I figure out what ISO to use when shooting film?
I'm new into film and I recently bought a pack of 200 film. I'm just not sure what ISO to use.There are two implied questions here: How should I set the camera for the film that I have? and How do I...
View ArticleAnswer by Caleb for Fair price to charge for editing out photobombers
What would be a fair price to get out the extra people and reconstruct the background?There's nothing here that's particularly different from other kinds of work. Charge your hourly rate times the...
View ArticleAnswer by Caleb for how to tell what cameras a particular lens will fit
The lens also says: "Digital NC 58 mm Japan Optics" and Bower.It sounds like the macro lens you have is actually an auxiliary lens that attaches to the front of the camera's main lens. If that's the...
View ArticleAnswer by Caleb for Can you turn a 60mm macro lens into a 100mm macro lens?
Can I add an extension tube [to a 60mm macro lens]...to emulate a 100mm Macro?No, but you can add an extension tube to a 100mm lens to let you focus closer, just like a 100mm macro lens.
View ArticleAnswer by Caleb for Canon 6D and GPS week roll over
My 6D got a GPS location today, Monday, April 8, 20-30 seconds after enabling GPS on the camera. I haven’t updated the firmware recently; the camera is currently at version 1.1.4.
View ArticleAnswer by Caleb for Is it normal for EF 24-105/4L IS to autofocus when...
Are you certain that the camera actually changed focus while set to MF? With an IS lens on the camera, you’ll often hear a noise when you half-press the shutter release, but that noise is the image...
View ArticleAnswer by Caleb for How do I get softer pictures in sunlight, like in this...
No-budget options:Wait for some clouds to show up. Clouds are big and white, so just having some in the sky can provide light from different directions to fill in shadows somewhat.Shoot near a white...
View ArticleAnswer by Caleb for Why does BRIGHT red in direct sun come out orange?
How can this be explained technically?Auto Exposure and Auto White Balance.The camera is trying to expose the image properly, but there's a huge difference in brightness between the shaded areas (most...
View ArticleAnswer by Caleb for How to get sharper photos with a kit lens when in low...
The lens will focus just as well in low light as it does in normal lighting. However, the camera’s autofocus system won’t work as well (if it works at all) if there’s not enough light. As well, if...
View ArticleAnswer by Caleb for How long would a camera battery last unused?
Just wanted to know if its still possible that the battery works or if i should also buy another battery.Yes, and yes.Yes, it's possible that the battery still works -- I've been able to charge...
View ArticleComment by Caleb on Umbrellas: what's the difference between white ones and...
@vsis The hardness of the light depends on the Kight’s direction. If all the light is traveling in the same direction, you get hard light. If it’s diffuse, where there are rats going in many...
View ArticleComment by Caleb on How can I compare histograms between a digital image and...
Have you considered just printing one or more test patterns and measuring the transformation directly?
View ArticleComment by Caleb on Black and white film prints are foggy - Nikon FM2
How old was this film? Also, how was it processed? And what was the ISO setting on the camera?
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Answer by Caleb for Do storefront signs appearing in a photo constitute fair...
IANAL, but I think it'd depend on how you use the photo. If your photo just happens to include someone's sign because it was there in the scene, that should be fine. Many cities have signs that have...
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