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1answer
92 views

How Schlieren Photography can be done using mobile camera?

Can we do Schlieren Photography using good mobile phone camera (13-20 MP)? If yes how or can we do this photography only using professional digital camera? Schlieren Photography
2
votes
1answer
188 views

What are the benefits of LZW compression for TIFFs?

I have few photos - JPEGs from smartphone, RGB, 8 bit per channel. Nature, landscapes. I want to edit them. Before editing I will convert JPEGs to TIFFs. I will use TIFF, RGB, 8 bit per channel. ...
1
vote
1answer
131 views

Given the provided Image taken at 50mm, what focal length would I need to get the 80% fo the rabbit to fill the frame?

Given the provided Image taken at 50mm, what focal length would I need to get the 80% fo the rabbit to fill the frame?
2
votes
1answer
28 views

Can multiple versions of virtual edits be stored in the same .XMP sidecar file?

Can multiple versions of virtual edits be stored in the same .XMP sidecar file, or is a separate .XMP sidecar required for each different set of virtual edits? I know one can create "virtual copies" ...
2
votes
1answer
70 views

An older Canon AT-1, is there any special cleaning kits or products that are recommended?

I am looking to clean up the body, lenses and the inner part of the camera. Does it matter if the camera is older for which products I use to clean it?
4
votes
1answer
56 views

Fixing Minolta Sr-1 stuck release button

Just bought a Minolta Sr-1. I was taking some photos until I advanced the lever but the button wouldn't release the shutter. I opened up the bottom and couldn't seem to figure out what was the problem ...
2
votes
1answer
39 views

Collodion / Wet Plate: Why do I get milky or foggy results?

When I'm ending up with milky and foggy looking plates, have I developed it to long? I've noticed on one part, that didn't catch enough developer, that this area seemed to be fine. Maybe the reason is ...
0
votes
3answers
84 views

Which color model to use while editing photos? RGB? Or some else?

I want to shoot few photos using smartphone. Nature, landscapes. From smartphone I will receive JPEGs, RGB. I will trasfer them to computer. Next step I will convert them to TIFFs. Next step I will ...
0
votes
5answers
405 views

EOS 250D the aperture changing only when picture is taken

I have yongnuo 50mm f1.8 lens In Av Mode When I m changing the fstop the diaphragm blades remains fully open and depth of field doesn't change I have looked to user Guide and find that I can assign ...
2
votes
2answers
170 views

Nikon D610 error after each shot

I have a Nikon D610 which worked just fine for many years. It has only 15K clicks. When I turn the camera on there is no problem until I take a shot. The picture comes out just fine but after I took a ...
2
votes
2answers
48 views

What is the effect of relative size of light source vs diffusion on the quality of light?

I have used large softboxes for my portraiture quite a while with good success. However, I come across the topic of diffusion vs size of the light source quite often. While I know, that the relative ...
0
votes
2answers
121 views

What PPI I need to set for photos to avoid pixelated, jagged edges on paper?

I want to shoot a few photos using the smartphone. I will receive JPEG files with a pixel density of 72 ppi. I will then move these photos to my computer and convert them from JPEG to TIFF (using GIMP,...
1
vote
1answer
138 views

How to mathematically crop photo from one camera to match view of another?

Imagine I take a photo of the same scene using two cameras, one right after the other, from the exact same spot. The cameras may be different in every way possible. They could have very different ...
0
votes
2answers
86 views

Does the loss of quality of jpeg files occur in each copy?

Does copying jpeg files reduce the quality of their files at any given time, and eventually make small changes to the size of the copied files compared to the original file ?
0
votes
2answers
75 views

How are these photos got same color flavor and look so similar?

I'm trying to understand, how all these photos got the same color flavor. The main problem i see - they are all shooten under very different light circumstances - like inside of a flat and on the ...
0
votes
3answers
108 views

Focal length needed to photograph card table

I am attempting to photograph a square card table 35 inches on each side, including some breathing room. I am using a Panasonic G6 with 14-24mm kit lens, at 14mm. On line calculators indicate that ...
0
votes
1answer
62 views

Open source licenses for sharing photographs (in the context of a research project)

Context Just a little bit of context here; I'm involved in a small research project where we want to collect images from citizen using a mobile application. These photographs are technical outdoor ...
1
vote
2answers
51 views

Reduce image sharpness and DPI [closed]

Why does the sharpness of the imag decrease when I increase the DPI of an image?
0
votes
3answers
217 views

Any cameras on the market that can be controlled via USB and open API

Hi I am curious about any cameras (mirrorless or similar) or camcorders on the market that can be controlled programatically via an API of some kind, ideally over USB, though I would be interested in ...
1
vote
1answer
56 views

Forcing shot of night sky [duplicate]

I want shots of the night sky with my Nikon D5600. Even in bulb mode and on manuel, and on a tripod, I can’t get the shutter to open. I just get that annoying “subject is too dark” message! I set ...
0
votes
2answers
31 views

Zomei z669 compatability to Acra-swiss connection

I have Sony a6500 camera and I had like to buy the following: 1) L bracket 2) Zomei z669 tripod The L bracket is Acra-swiss connection however I cant find if the Zomei z669 supports it. If someone ...
3
votes
2answers
136 views

Poorly scanned or poorly shot film roll?

Edit: Here are samples of the negatives.. 29, 32, and 33 were the photos I showed I'm hoping I could have some input on what exactly went wrong with this Portra 400 35mm roll of film. I've been ...
1
vote
0answers
30 views

How can I solve the problem of Canon PowerShot SX230 HS’s monitor?

I have a Canon PowerShot SX230 HS. It works very well, but after a while, the monitor displays everything in yellow. Would you please educate me on how I can solve this problem?
4
votes
1answer
77 views

Counteract strong blue light emission from a cheap LED

First of all let me tell you that I'm a real newbie in photography, I know basically nothing. I'm trying to digitize our family slides. Just to be sure we're all talking about the same thing, I'm ...
5
votes
5answers
113 views

White balance color space [duplicate]

How were the colors for white balance chosen? Why is it specifically temperature going from blue to yellow and tint going from violet to green?
1
vote
1answer
28 views

Is Kodak Flexicolor SM (C-41SM) Tank Final Rinse a good stabilizer?

After some difficulty, I managed to obtain a 1L CS-41 development kit from Cinestill. Unfortunately, since it is a power kit the stabilizer packet is not included in it. My previous kit from Unicolor ...
10
votes
5answers
4k views

Do more megapixels mean sharper images?

Do more megapixels mean sharper images? Would a 24 MP camera produce a sharper image than an 18 MP one (given the same lens, settings and scene)?
0
votes
2answers
159 views

Using a modern lens (with electronics) manually?

Long story short: What I have: Panasonic GH4 Endless 3D printing options for making my own adapters Very, very nice japanese retro prime lens from almost 50 years ago (yeah, it really looks ...
6
votes
3answers
231 views

What is this style of photography called?

I am trying to learn a specific type of photography and am having a difficult time finding out the name for it. What I am most interested in, is a specific niche of high focus, minimalist, black ...
2
votes
0answers
42 views

Software for detecting orange dates on 4x6" photo prints and adding to metadata

Is there any software that will detect (e.g., OCR) the orange date timestamps burned into 4x6" snapshot prints and automatically add the date EXIF metadata? Would be interested in options either baked ...
1
vote
4answers
143 views

What non-AF, old lenses are adaptable to my EOS 550D EF-S mount? [duplicate]

I have a Canon EOS 550D and would like to use old, cheap but good lenses on it. I don't care about autofocus for this and am aware that there will be a cropping effect (therefore mainly looking for 24-...
0
votes
3answers
70 views

Zomei z669 for panoramic stitching

I would like to take wide pictures however I have only a 18mm lens. I thought instead of spending lots of money on a wide-angle lens, just to stitch into panorama with Lr/Ps afterwards. I thought to ...
2
votes
1answer
96 views

How to apply identical color curves to many pictures in GIMP?

I have a few thousand images that I want to apply the exact same color curve adjustment to. Is there a way to do this in GIMP? I found this How can I get a uniform white balance on a batch of JPEG ...
1
vote
1answer
31 views

Program that can apply calibration frames to individual subs - Astrophotography

With Deepskystacker or similar programs it's easy to add calibration frames which are applied to the final output image after stacking all your subs, however I would like to apply them to each sub to ...
0
votes
2answers
64 views

Connecting the strap to a stainless steel D-ring screw at the bottom of the camera

As above. It seems it should not be able to handle the weight but I wanna hear from people's actual experiences and not just theories. The body+lens would weigh around 5-6 pounds. The ring/screw ...
1
vote
1answer
230 views

Aperture priority on Nikon DF doesn't work with pre-AI lens?

I just bought a 55/3.5 pre-AI. In order to use aperture priority mode, I did these: Raised the meter coupling lever On Non-CPU lens data: focal length: 55 maximum apperture: F/3.5 exposure meter ...
1
vote
1answer
39 views

Polaroid Sun 660 problem

I need help with one Polaroid sun 660. It seems that auto focus is not working at all. After investigation on internet i noticed that this camera has a 4 disc lens , so every time that you press the ...
1
vote
2answers
51 views

How to use lenses from Chinon CS-4 on Canon DSLR?

My wife has a Canon EOS 750D. She only has 2 lenses for it and has been talking about getting more. Today, I was at my mum's place and she had these old lenses from a Chinon CS-4. Are these lenses ...
1
vote
3answers
131 views

Does the ISO setting on Minolta Auto 25 flash change the flash power?

I'm using an old Minolta Auto 25 flash off camera wireless to my FUJI XT2. There is no manual power setting switch, only an ISO setting dial. I do not want to use auto mode, but I also do not want to ...
1
vote
0answers
65 views

How Do I organise My Photos on Various Devices

My photo files are a mess. They are randomly distributed between my desktop computer, iPad and mobile phone, sometimes duplicated and sometimes not. I need to get organised. I have a Mac desktop, an ...
6
votes
2answers
264 views

How do I prevent intensive red noise on a deep-sky photo?

This is a fragment of my recent photo of the pinwheel galaxy (M 101): As you can see in this enlarged (200%) detail, the image is full of red noise, which makes all red objects (M 101 has several ...
1
vote
2answers
114 views

Can I use “sRGB mode” or a manufacturer's ICC-profile as a poor substitute for hardware calibration?

I have no colourimeter to perform hardware calibration, but while editing some pictures I still would like to be able to get the colours appear at least slightly truthful. I know that every monitor ...
1
vote
2answers
213 views

Recommended lens for landscape

I own a Sony a6500 camera and I bought one lens Sony 18-105mm f4. I plan a trip to Iceland and I would to make some good landscape photos. I saw the first season of "Photographing the World" where ...
1
vote
1answer
29 views

My RTS CONTAX can't unwind my film rolls, help and advice please

I am relatively new to film cameras, I am still learning using a film camera. More often use DSLR. I just spent my quarantine days taking a roll of 36 photos with CONTAX RTS. When I got to my last ...
8
votes
4answers
2k views

New Pi camera - any good for Astrophotography?

So, the Pi Foundation have released a new camera, https://www.raspberrypi.org/blog/new-product-raspberry-pi-high-quality-camera-on-sale-now-at-50/ Some specs: 12.3 megapixel Sony IMX477 sensor 1.55μm ...
-1
votes
1answer
61 views

Ensure ALL iPhone burst shoot images are shared via upload for Selection & Editing? How?

Ensure ALL iPhone burst shoot images are shared via upload for Selection & Editing? How? We did a casual photo shoot, lots of burst shots a few months back. We never got around to working on ...
2
votes
2answers
48 views

Lightroom adjustment brush settings or shortcuts

Working in Lightroom and suddenly my 'adjustment brush' tool is auto masking the entire photo I am editing. I must have hit a key on the keyboard. The 'auto mask' box is unchecked (I tried checking ...
0
votes
2answers
80 views

“Megapixels” of C/CS mount lenses

So Raspberry Pi got a new camera module and two C/CS mount lenses. Such lenses apparently specify "megapixel resolution", in addition to aperture or focal length. What does it mean? It is quite ...
3
votes
2answers
248 views

How do you keep white balance from killing the color?

I first noticed this when I used one push white balance in Hxr-Mc2500 sitting on a fluid head. I used a piece of A4 paper for WB reference and the lighting of the incandescent bulbs became weird white ...
4
votes
2answers
58 views

How to store film before processing?

I have been shooting some color films (portra 400) during this quarantine time and I have to wait before getting them processed as labs are closed. I have read many contradictory opinion on that ...

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