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41 views

I have a photo taken with a cell phone in the dark the subject is unrecognizable how do i edit this to see what was in the photo?

The photo was taken with a cell phone in the dark.. the subject is unrecognizable when I start adding brightness contrast and highlights it makes it too pixily and even more confusing! What order ...
1
vote
1answer
50 views

DIY Visible light blocking filter (IR passing filter)

Which one is a better option (to block more visible light and to block less IR light), floppy disk or developed unexposed photographic film?
0
votes
0answers
6 views

How to rename recovered video files based on date and duration? [migrated]

Realizing that I had not copied trip videos before I had reformatted and reused the memory card made me first bang my head against the desk, then trying to recover what's still left on the card. I ...
0
votes
0answers
25 views

How will the image be displayed/interpreted if I publish a JPEG online with no embedded color profile?

In case I should rather edit the image in a particular way, I use GIMP 2.10 on Windows 10 Home 64-bit.
1
vote
2answers
44 views

Calculate lens FOV difference between Full-frame and APS-C sensors?

According to manufacturer specs 20mm lens has Field of View 94 degrees on FF (35mm) sensor and 70 degrees on APS-C sensor. Another 35mm lens only has Field of View specified for FF (35mm) 63 degrees, ...
34
votes
4answers
5k views

How can I use my dSLR or mirrorless camera as a webcam?

I'm primarily a stills photographer with some great interchangeable lens camera gear. But now in 2020, I find myself needing a webcam for video conferencing under lockdown. I'm frustrated by the lack ...
1
vote
1answer
231 views

How does the defocus in a lightfield camera differ from a regular camera (i.e. a DSLR)?

I'm looking at using a camera to capture a focal stack -- same scene, no movement, just refocusing my DSLR at different focal lengths. I want to know if the defocus that's artificially done in post-...
8
votes
6answers
2k views

How can I seal the sticky rubber on an aging Sigma lens?

I have been gifted an old Sigma lens from around the early 90s, but as is common with the soft-touch rubberised coating on lenses of this age, the material has started to degrade and has become sticky....
1
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1answer
17 views

I can only see one filter at a time in photoshop

I am trying to reduce noise in an image by using the "reduce noise" filter + "surface blur", but i can only see one result at a time. I've tried using smart objects and also ...
9
votes
7answers
286 views

What types of camera support exist to help a photographer with onset of Parkinson's disease?

I have onset of Parkinson’s, so I have bad hand tremors. Do any round the neck, eye level supports exist which can help me stop camera shakes? This would be for a bridge (superzoom) style camera with ...
1
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3answers
50 views

Metering red lights in film photography

I’m a film user and I measured this using a sekonic L508 meter. The light is led continuous light reflected to the ceiling. Why is the face detail blown when I used the light meter? Does red light ...
1
vote
1answer
12 views

Connecting my Godox SK400 II with my Godox X1R-C Receiver

Okay, so I finally want to delve into flash photography. But I'm having the hardest time connecting my Godox SK400 II with the X1R-C Receiver. According to the product features, the SK400 II has a ...
5
votes
1answer
169 views

Sensor spot/dust testing - should test shots be exposed to the right?

I recently bought a new camera and have been doing some sensor spot/dust testing. In some sites/guides/videos, aside from the usual setup (ISO 100, F/22, focus to infinity, shoot at a blank white wall,...
1
vote
2answers
106 views

Why does temperature in Lightroom go from blue to yellow instead of orange to bright blue?

I was wondering why Adobe chose to have color temperature compensation be the B-channel of the LAB spectrum, as it does not look at all like the kelvin spectrum. Does the B-channel compliment Kelvin ...
0
votes
0answers
15 views

Is my monitor inhibiting my post processing?

My Acer x193w equals 1440 x 900, 0.283nm pitch, 16 million colors I am thinking of upgrading the display, I'm editing photos and wonder if my suspicion of not being able to appreciate the fine detail ...
0
votes
1answer
48 views

What specifications does a macro lense need for a Thermal Seek CompactPro?

I'm getting into repairing electronics and would like to be able to look closer at failing components. The Zink Selenide lenses, that are being sold, are insanely overpriced. I can't find the focal ...
24
votes
3answers
176k views

Should I use “sRGB mode” on my computer screen?

I recently acquired the ASUS PA248Q screen for photo processing (and everyday use and gaming: I have just that one display). This display offers a "sRGB" mode. Right now the screen is configured to ...
0
votes
2answers
888 views

My new Nikon d3500 is not showing the light meter in live view mode

All the tutorials are saying the light meter (exposure meter) in live view mode should be there, except that it's not showing there in my brand new camera, lol. Is there a setting I might have set ...
7
votes
2answers
12k views

What happens if I press the film rewind button early?

I have to press the film rewind button on the bottom of my Pentax ME Super in order to be able to rewind the film back into the canister when I'm done shooting a roll. If I accidentally press it ...
5
votes
1answer
157 views

D5000 is changing random colors in photos

My Nikon D5000 started changing random parts of my photos to blue and purple while I was at a equestrian show. I originally suspected that the CCD had started to fail. However, I just replaced the ...
2
votes
1answer
184 views

Tokina AT-X 120 Pro DX AF 11-20mm f/2.8 vs Tokina AT-X 11-20mm f/2.8 Pro DX

for my Canon 80D am looking for a wide angle fast lens. Am considering the Tokina 11-20mm f/2.8. Am confused though as I have found online two different names with apparently the same specifications. ...
7
votes
3answers
1k views

How to efficiently stop metadata being in my photos?

For privacy reasons, I would like to ensure that any photos I publish do not have any metadata in them. At the moment, I'm deleting the EXIF data via copy-and-paste in Photoshop, which is a very ...
19
votes
5answers
3k views

Maximum useful resolution for scanning 35mm film

I have no particular project in mind so I'm just asking in order to have a better understanding: Let's say I'm an artist shooting pictures with a 35mm camera and my point would be to make really big ...
3
votes
2answers
281 views

How do color values change mathematically as you change temperature and tint?

I was wondering what does color temperature do to your pixel's RGB/LAB values when you adjust it. I get that things get more yellow or more blue in the case of temperature, but what equation is ...
0
votes
0answers
27 views

battery not loading on film on camera

I have a Praktica M60 26mm Glass Lens camera and the battery ran out and i had to change it. when putting in new batteries, it won't work. any suggestions? i can't wind the film and it says 0 (...
5
votes
3answers
125 views

How do I get metallic labels to pop

How do I get metallic labels to pop? Here it looks very flat and boring. I don't have much for equipment so I'm more or less trying to figure out easy ways to do it and maybe comp it. The blue on ...
0
votes
0answers
44 views

discarding Kodak Carousel trays

I am going through MANY old family slides, editing with extreme prejudice, and scanning. I'm going to have nearly 100 empty Kodak Carousel trays (both 80-slide and 140-slide varieties), and I'm not ...
1
vote
1answer
88 views

What materials absorb or block infrared wavelengths?

I'm not exactly doing pro photography here; please forgive me. My baby monitor is mounted in a corner. It shines bright IR at night, and the walls are highly reflective, and I can barely see into the ...
21
votes
3answers
1k views

Is it possible to do infrared photography with digital cameras?

I remember taking infrared pictures with a simple filter and black and white film. How can I do something like this with digital cameras? Or is this even possible?
8
votes
3answers
3k views

What is the best choice of filter to modify a DSLR for infrared photography?

If I choose to remove the hot mirror off the sensor of my D70, should I absolutely drop in an IR filter in it's place? I understand that dropping an IR filter shall put an end to all visible ...
1
vote
3answers
103 views

Is a classic analogue printed film photo CMYK?

The ultimate point I'm trying to solve here is - is there any point in scanning printed photos with a wider gamut than sRGB? I'm assuming such as standard analogue Kodak negative film printed to ...
0
votes
1answer
53 views

How does Lightroom and PS guess color temperature?

I've been searching for weeks for what Lightroom and Photoshop use to determine your image's color temperature. People have said a lot about the kelvin scale and how to white balance, but this isn't ...
18
votes
2answers
9k views

My Canon EOS 5D Mark IV is asking if the inserted battery is original or not. What are the implications of my answer?

I bought my Canon 5D Mark II used, and there were two 3rd party batteries included. Recently I got the 5D Mark IV, and I do not want to throw away all the batteries I own. The 3rd party batteries ...
1
vote
1answer
133 views

Why won't my camera fire the off-camera flashes even when the trigger button will?

I have a Canon 80D and I use 3 yongnuo triggers to trigger off-camera flashes. But even though the trigger on the camera will flash when I press the trigger button, it will not flash when I press the ...
1
vote
0answers
13 views

External battery pack for Speedlight YN600EX-RT II [closed]

As from title I need an external battery-pack that can power the Yongnuo flash YN600EX-RT II. Can anyone suggest me some product?
9
votes
3answers
3k views

Is it worth investing in a used 35 mm Film camera?

I've a Canon 60D and I'm mainly interested in shooting landscapes. I feel very interested in buying a used canon EOS film camera (since my EF lenses are compatible). I would like to take pictures ...
1
vote
1answer
31 views

Why does my nikon 910 flash fires 2 short flashes before final fire

I am using Nikon D750 camera and Nikon Sb910 flash. I am missing the timing of action because of this delay of flash firing.
2
votes
1answer
66 views

How to make a two stage Lightroom Catalog?

I'm a person who takes too many photos. Thus, the volume of photos is so high that I have no chance of storing them all in one place (8 TBs and counting). Thus, what I want is to save the initial ...
2
votes
5answers
201 views

Magnification percentage meaning

How do I convert from the percent magnification that many photo editing apps use to times magnification? For example, if I have taken a photo at 30mm and then zoom to 100% percent in Lightroom, what ...
9
votes
4answers
2k views

When a camera auto-focuses, is the current focus distance reported from the lens to the camera?

The question says it all -- does the camera "know" how far the subject is from the lens, i.e. what is the current exact focus distance set at the lens?
2
votes
5answers
10k views

What are these lines of colour on my Epson Perfection V370 scans?

I have started to notice vertical stripes of colour on all of my (document table) scans. What might the cause be, and is there a fix? My scanner is an Epson Perfection V370 Photo, purchased ~3 years ...
0
votes
1answer
89 views

SLR light meter won't turn off and inaccurate

I had my ricoh xr500 CLA'd (i.e. sent to service) a few days ago. I noticed the light meter no longer shuts off and it does not display accurate measurements. Before I had it CLA'd the meter is ...
1
vote
1answer
185 views

Which lens should i choose for bokeh while video streaming?

I don't understand this lens topic. I watched so many videos and now i have more questions. I have a Canon M200 for streaming. I want nice bokeh effect for my background and silence auto focus. ...
0
votes
0answers
37 views

Detecting very dark and very bright images in collection

I have established a vast photo collection over the past years. I did not always thoroughly delete bad shots before putting them onto my drive. I am looking for an approach (software, script, filters) ...
2
votes
1answer
181 views

How to organize photos efficiently (in terms of 'naming', 'tagging' and FOSS)?

I have thousands of photos in multiple directories. Any tool or idea to organize them properly will be helpful. Here is the details: I have been ignorant all along about organizing those until ...
1
vote
0answers
16 views

Are previews compatible between Lightroom versions?

Lightroom creates a folder to store previews next to each catalog. This folder is named <CATALOG> Previews.lrdata so when a new version of Lightoom Classic is installed and migrates the catalog, ...
0
votes
2answers
64 views

How do I supply metadata when digitizing a print, slide, and negative library?

A digital camera conveniently gives a file name, has an embedded data/time stamp, has the make model of camera and (usually) lens, aperture, shuterspeed. may have copyright, GPS, How do I add metadata ...
1
vote
1answer
71 views

Why is there heavy dust and scratches only on the darker part of scanned color prints?

I was scanning my color prints and while postprocessing them, after descreen, I had noticed a trend that there were always a lot of dust and scratches on the darker part of the image, while the ...
3
votes
1answer
82 views

Errant lights in long exposure at night

I've been trying to get some images of the milky way. I was is central Sardegna near some neolithic ruins as a backdrop. A few images had this odd squiggles of light. Not every frame has it. It's ...
2
votes
2answers
227 views

Why does my lens aperture stop working a few hours after attaching the lens?

I recently purchased a used Sigma 105mm f2.8 DG OS Macro lens, and when I tested it during the purchase everything worked fine. A few hours later when I tried it again, I noticed that my pictures were ...

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