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6
votes
3answers
210 views

Photo competition May 2020: Lomography

Update: we have a winner! Alaska Man wins this photo competition, with their sheet-film photograph of an Audi at the 2001 Paris Auto Show. Theme After another delay, I've decided to take the ...
3
votes
2answers
132 views

Changing the field-of-view of a photo in post

Photos in real-estate listings typically present a distorted reality in which rooms look longer than they are—see for example https://photographyforrealestate.net/2016/07/19/is-it-possible-to-get-by-...
1
vote
1answer
99 views

What aperture to use to get the same DOF as in a panoramic image

When I take a panorama with a 80mm lens at F/2.0 on a fullframe body such that the resulting image has a equivalent field of view of a 50mm lens on the same body, what would then be the equivalent ...
3
votes
4answers
163 views

Which equipment is suitable for close-up photos of electronic circuits?

I want to start a YouTube channel to explain electronics and circuits, ideally with quality like in this video. I've watched over 50 videos on YouTube and tried to understand their setups, but haven't ...
2
votes
2answers
141 views

Capturing darts in long exposure

I would like to capture the flight path of my darts in long exposure, however I don't have much experience of the technique. The flight time of the dart will be approximately 120ms, possibly slower ...
1
vote
0answers
23 views

Differences between ImageMagick and GraphicsMagick's defaults for the convert utility

I'm using convert to apply an HCLUT on an image. ImageMagick and GraphicsMagick both work, and both outputs have the same resolution, pixel density, metadata, etc. Howerver GM's output is a lot ...
1
vote
0answers
74 views

JPG files - different brightness in viewers

I have a single JPG file. If I open it with IrfanView, it is darker than the same file opened in PhotoShop (or in Firefox). What can cause this? The correct version is the one from Photoshop (or ...
1
vote
0answers
32 views

How do I get an old microscope adaptor to work when the K-3 is asking for F-stop data?

I have fitted an old manual microscope objective mount to my Pentax K-3. It asks for the F-stop to proceed, which the lens cannot provide. I have tried all settings in the camera including manual ...
1
vote
1answer
39 views

What is the equivalent of magnify function in a Fujiffilm xt20 camera?

As showcased in this video (https://www.youtube.com/watch?v=IHSmT5I3vP0), there is a button on the Canon camera (Canon 5DS R) which allows the user to zoom into a live view on LCD. I have highlighted ...
0
votes
2answers
98 views

What is the terminology for a convex lens on a glass? [closed]

An example is a concave microscope slide. I am wondering if the opposite exists instead, so a convex lens that is part of the glass? Is there a term for having glass around a lens/a lens on glass? ...
0
votes
1answer
204 views

Bird Photography lens recommendations on a Canon 7D Mk I

On my off days I sometimes go to the nearby creek to take pictures of these water fowl that are usually chill about getting their picture taken. Stills are nice, but I wanted to use my 7D to it's full ...
0
votes
1answer
129 views

Nikon flash guide number

I have recently purchased a Nikon SB-28 flash for my Mamiya 645 1000s camera. Since I can use the flash only in the Manual mode, I am trying to create a guide in order to be able to calculate the ...
0
votes
3answers
84 views

For food photography, is my canon 550D 18-55mm sufficient? [closed]

To take better food photos, should I buy another lens for my canon 550D 18-55mm? Or is this camera "too old" already and I should simply get a new camera? OR maybe just a new phone that has good ...
2
votes
1answer
260 views

What are the benefits of CR2?

Once friend made few photos for me. Park, people have rest. Friend gave me photos. Every photo was in two formats - TIFF and CR2. TIFFs I use for editing, storage. From TIFFs I make JPEGs for blog. ...
1
vote
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
186 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
130 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
27 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
2answers
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
162 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
85 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
74 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
54 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
134 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
111 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
1answer
141 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
230 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
94 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
63 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 ...

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