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485 questions with no upvoted or accepted answers
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7
votes
2answers
333 views

Can any MFT lenses be turned into a practical object-space telecentric macro lens by reversing?

The micro four thirds specifications originally want lenses to be image space telecentric if possible. It seems that some MFT lenses actually follow that recommendation. Can reversing such a lens ...
7
votes
0answers
140 views

How to take photos quickly through iPhone using Ricoh Theta SC?

I recently got a Ricoh Theta SC. If I use it standalone I can press the shutter button, it will make a noise to indicate it is taking a picture. Within about 1 second I can take another picture by ...
6
votes
0answers
3k views

Issue with Yongnuo 568EX flash on i-TTL mode

I've just received 2 pieces of Yongnuo YN568EX for my Nikon D610. When I’m on I-TTL mode the flash fires but the image is black (I tried it on each mode: auto, manual, A…), the sound tick-tick twice-...
5
votes
1answer
212 views

Why is my film coming out so dark?

I have an Olympus AZ -230 Super Zoom 35mm film camera. A roll of film has come out very dark, almost a purple tint. How do I correct this for the future?
5
votes
0answers
202 views

Built-in Canon R5 intervalometer not triggering with back button focus

I was trying to use the built-in intervalometer on the Canon R5 last night, and at first set-up the shutter wasn't being triggered. I played around with settings for a bit, flipped the lens to Manual ...
5
votes
0answers
761 views

How can I use the 200 seconds exposure time in Raspberry Pi HQ camera?

I would like to use the Raspberry pi HQ camera for astrophotography. I have read in the answers and comments on this question that I should be able to use a maximum exposure time of 200 seconds. This ...
5
votes
1answer
561 views

Calculating EV of an image file using its exif data

I'm trying to calculate the EV (exposure value) for an image file based on its exif data. From the exposure value article at Wikipedia, I am using this formula for calculating EV: EV = EV100 + LOG(S/...
5
votes
1answer
733 views

Why won't Canon EOS 400D turn on?

I have the Canon EOS 400D - also known as EOS Digital Rebel XTi, or Kiss Digital X in Japan - and as of tonight, it stopped working. It won't do anything, with or without batteries or a CF card, ...
5
votes
0answers
648 views

How to continuously store Canon EOS 80D images on a computer over WiFi

The EOS Utility for Canon cameras allows the transfer of images stored in the Camera to a computer running the EOS Utility over WiFi. And this EOS Utility can be configured to transfer only those ...
5
votes
0answers
760 views

How to embed ICC profile in DNG so darktable will use it?

I am experimenting with linear raw DNG and ICC profiles with Darktable. The DNG files are the result of scans using VueScan. I can add the scanner's ICC profile to the DNG. But when I open it in ...
5
votes
0answers
467 views

How to disable automatic cropping that's done after distortion correction in DxO Optics Pro 9 or 10?

DxO uses so-called "modules" that apparently contain many lens parameters and they are implicitly used for correcting geometric distortion, and some other issues in pictures automatically. ...
5
votes
1answer
436 views

Adjust manual focus for sharper images with Sony RX0,for aerial photography

I am taking photos around 80m altitudes (with Sony RX0) with a moving drone,Shutter Speed is set to 1/1000 to prevent blurs,I want to take sharp images with manual focus,how should I adjust settings ?
4
votes
0answers
154 views

Linux desktop software to create photo albums

I am wanting to design a photo album/photo book, in which I put together different photos, some text, etc. and this become a multi-page document. I very much enjoy Canva which has useful tools such as ...
4
votes
1answer
199 views

Differences between DCP and ICC profiles?

I am trying to understand what is the best colour profile that I can generate from a ColorChecker for calibrating my camera. I always used ICC colour profile standard but now I saw also DCP colour ...
4
votes
0answers
35 views

PanoTools Scripting

I have a series of microscope images that I'm trying to stitch together. In all cases the images are made by horizontally shifting the stage. Autostitch does an absolutely wonderful job. ...
4
votes
3answers
129 views

Windows-app to quickly enter iptc keywords

I have scanned thousands of slides. They have no metadata. Is there a windows application to quickly enter iptc keywords for each image? It should be keyboard-driven and have autocomplete suggesting ...
4
votes
0answers
147 views

"No Feature Points" and "Bad Params" and no luck with align_image_stack

I want to align aseveral images that contain the progress of assembling an electronic circuit [sample images here: https://i.stack.imgur.com/6XWXv.jpg, https://i.stack.imgur.com/lFJZE.jpg, https://i....
4
votes
1answer
170 views

How to embed an ID in Pixel 3a EXIF data?

My wife and I both use Pixel3a phones so we are not always sure which one took which photo. Is it possible to embed some information into the exif data on one camera for use later as id. thanks
4
votes
0answers
4k views

Simple Explanation of the Hot Shoe Pins on Canon Cameras and Flashes?

I haven't found any thorough documentation about exactly what each pin does and the signalling between a camera (say a T6i) and a flash (say speedlite 600ex-rt ii) looks like. What voltage levels, ...
4
votes
1answer
1k views

What is the best way to preserve chlorophyll anthotypes?

I'm working on a 19th century photographic process called Anthotype. It basically involves using plant juices that fade when exposed to sunlight. For my light sensitive juice I've choosen concentrated ...
4
votes
1answer
305 views

Can my Nikon D750 fire a flash while I'm connected to it over wifi?

I'm trying to take photos from my iPad using the wifi connection on my D750, but I can't get the setup to trigger my flash when I take photos that way. Is this a thing that can be done?
4
votes
0answers
163 views

Giving compact digital camera a Brain

I read this article Give your DSLR a brain by connecting an android phone and was amazed by how a DSLR camera can become a much smarter device after connecting with an Android phone (with the help of ...
4
votes
1answer
1k views

Is Magic Lantern giving incorrect shutter counts on my Canon 500D?

I bought a new camera (500D) and have had it for about 4 days. I have installed the latest version of Magic Lantern on it to get a little boost, but when I got into shutter count it gives me 14k (...
3
votes
1answer
105 views

Why are my recent film photo’s coming back grainy/blurry?

On my last three rolls of film I’ve had developed the pictures have been excessively grainy. This is apparent on looking, but once zoomed in (even a tiny bit) all definition/detail is lost and the ...
3
votes
0answers
304 views

Remove sun glare using GIMP

How can the glare from the sun in the upper right part of this photo be removed using Gimp?
3
votes
1answer
40 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, ...
3
votes
0answers
79 views

Turntable Fixture dilemma

As it stands, I've been looking into a contract for doing product photography for a small company that sells custom race car parts and services, and I am running into one challenge that I haven't been ...
3
votes
2answers
306 views

Does the Interval Timer on the Z6 (or Z7) automatically disable after each sequence/series of shots?

I have the Canon RP and am disappointed to find that the Interval Timer disables itself after each sequence and must be re-enabled for every new sequence. So, every press of the shutter requires ...
3
votes
1answer
131 views

How to "save a session" in digikam?

I'm fairly new to digikam. (Previously I was using Shotwell to sift through thousands of photos from various sources to separate the wheat from the chaff, but now feel digikam might be better suited ...
3
votes
0answers
158 views

Do smartglasses where you can see the image being taken exist?

I was wondering if there were any smart glasses, or an eyepiece where you could receive the image, in real time, that is being composed on your viewfinder or live View? I often use awkward angles and ...
3
votes
2answers
256 views

Canon DPP 4 - copy/apply white balance settings

I have two shots made with automatic white balance setup (AWB) in artificial light conditions. I like how the camera evaluated the white balance in the picture with white paw, I like how green color ...
3
votes
2answers
5k views

disposable camera film - random pics green, no image, fog

I got a film developed at cvs. It was a disposable fuji. Some of the photos returned were so hazy and green you could not see the image at all. Is there any way to fix these images? Other photos were ...
3
votes
0answers
1k views

What camera did Cindy Sherman shoot with?

I'm studying photographers and am curious to know what camera CS used for her work. I'm sure the latest is on digital but wanted to know what she started out with.
3
votes
0answers
72 views

Sony a7III starts shooting JPEG even after I choose RAW

Despite the fact that I set to RAW, at some point the camera begins to shoot JPEGs only. My guess is that this is related to the space available on the SD card. If so, is there any way to turn this ...
3
votes
0answers
80 views

How did technicians individually hand-shim each Pentax/Konica 35mm slr lens mount?

I just received a Konica Autoreflex T and I found out that the lens mount is individually hand shimmed. How did the technicians determine if the lens mount is correctly parallel to the focal plane?
3
votes
0answers
97 views

External Flash Only Fires Once

Weird problem - Setup is as follows: D5600 -> Pixel TF-322 hotshoe to sync cable adapter -> Flashpoint FPBF120 strobe. The strobe only fires the first time I hit the shutter button; after that, the ...
3
votes
0answers
137 views

Nikon ViewNX-i and sidecar files

I wanted to use Nikon View NX-i to set the GPS coordinates in my raw files but it seems the data are always going to a sidecar file. I got a folder NKSC_PARAM aside of my raws with .nksc files inside ...
3
votes
1answer
144 views

What filter size for Pentax 100SDUF telescope?

I am looking to use a Pentax 100SDUF telescope as a long focal length lens. I would like to protect the front element with a clear filter. There are no markings on the lens as to the size of filter ...
3
votes
0answers
86 views

Matching color of HDR panorama

For normal images color checkers can be used to correct images that the color representation is euqual. How is it done with HDR images? How can color checker board measurements be included in the tone-...
3
votes
0answers
118 views

Characteristic Curve for Split Toning?

We can see from the data sheet on Ilford Multigrade Paper (link) that the curve gets steeper with increased contrast and tonal range shrinks (as expected). Various techniques seek to maximize tonality,...
3
votes
0answers
255 views

Is tethering possible with the Nikon Coolpix P520?

1. Summary I can't find, is it possible PC live view for Nikon Coolpix P520. 2. Details I try to scan books, use this device. It would be nice to have feature, that user can to see on PC monitor, ...
3
votes
0answers
126 views

Canon built-in intervalometer and image preview

I'm using the built-in intervalometer on my Canon 77D camera to shoot timelapses. I'd like to be able to asses the images by checking out the histogram on the preview (so I can adjust exposure ...
3
votes
0answers
190 views

What apps can fully load 32-bit floating point DNGs?

Lightroom Mobile's HDR feature produces a somewhat uncommon type of DNGs - 32-bit floating point ones. I tried loading one into Photoshop. I was presented with an Adobe Camera Raw window where I ...
3
votes
0answers
97 views

Lightroom 6 Single License Edition will not Load

I purchased the Single Licence Lightroom 6 and I cannot get it to load past the initial splash screen it says " Windows encountered a problem and you have to close the program" this is very ...
3
votes
0answers
149 views

Darktable: how to save export account?

DT 2.2.5. How to save "export selected" account (facebook/google/flickr) credentials? fb/google works for me but every time I'm restarting DT I have to go thru authentication process again. Settings->...
3
votes
0answers
53 views

Lightroom: How to add superordinated keywords quickly?

I'm using LR 5.7 with a keyword hierarchy and have to tag thousands of photos quickly. Using the Shift and Cmd/Ctrl keys helps me assigning a keyword to a bunch of files at once. Sadly if I tick a ...
3
votes
0answers
511 views

Panasonic lens autofocus does not work with Olympus bodies?

I just got a Panasonic Lumix Nocticron 42.5mm lens and the autofocus does not appear to work with my OM-D E-M1 M2 body. Is autofocus supposed to work on non-Panasonic bodies for this lens, or no? Is ...
3
votes
0answers
229 views

How to find “lost” graduated/radial/brush filter pins in Lightroom?

Is there any way to find or jump between either graduated, radial, or brush filters that have been applied to an image in Lightroom? I often have trouble finding the little dots/pins that are placed ...
3
votes
0answers
145 views

Focusing issue with Pentacon6/Biometar80

I recently bought a 'new', old Biometar 80 lens for my Pentacon 6 camera and did some preliminary tests with an adapter on my Nikon DSLR. Everything looked great, so I went on holiday with the new ...
3
votes
0answers
625 views

Can I create an "old polaroid" style with Nikon Picture Control?

I want my Nikon D810 to automatically post-process my shots so that they look like old polaroid/vintage photos. Therefore I want to create a Nikon picture control configuration file (with the program ...

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