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5 views

First attempt to use X-Rite ColorChecker… custom profile seems off by a mile

I purchased an X-Rite ColorChecker to attempt to get better white balance for my camera (a7R IV). My first attempt at using it has yielded wildly questionable results. Process below. All files ...
0
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0answers
6 views

How can I achieve 1:1 ratio for macro on my phone with 12 MP camera?

I have been using two lenses of 15× from different brands, to obtain a 30× magnification , but Still for smaller insects I am unable to capture all the details in macro. Is it possible to achieve 1:1 ...
0
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0answers
9 views

What part of Canon 50mm f1.4 is responsible for failure to autofocus?

I have the Canon 50mm f1.4 which had the common focus issue due to deformed inner focus ring. I have straightened the ring and the lens now had full range of manual focus, but Autofocus cannot find a ...
0
votes
0answers
12 views

Entry level / beginner mirrorless/DSLR camera?

If something like this exists already please point me in the right direction, thanks! I'm looking at getting a new camera. It will be mainly used for when I go traveling, when seeing family. Pretty ...
1
vote
0answers
6 views

How important is the artificial light tint temperature (K)?

If you were given a choice and money wasn’t an issue, how likely would you buy one of those multi-tone flood lights for your photography/videography considering that you will be shooting RAW and with ...
0
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0answers
12 views

Nikon TW Zoom lcd blinking

My camera started acting up recently and not working. The LCD iss flashing. Changing the battery does not work Any reason behind this, and is it fixable? Cheers
0
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0answers
45 views

How to make a very bright photo?

I have tried everything with my Nikon D3100 to make a bright photo I.E. without shadows, very very bright. I used manual and set white balance to direct sunlight. The other options are giving me ...
1
vote
0answers
14 views

How does Lightroom associate a preset with a camera profile?

How does Lightroom associate a preset with a camera profile? Is this the UUID in the preset's .xmp file? If so, how/where is this associated with the .dcp file? The underlying issue I'm trying to ...
1
vote
0answers
16 views

Nikon Z6 show rule of thirds grid

On my Z6 instead of a 3x3 grid, I get a 4x4 grid. Is it at all possible to make a change on the firmware to show a 3x3 grid instead? I've checked the settings and can't change the grid to a 3x3 ...
1
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3answers
57 views

Différence between a long lens design and a telephoto

I was looking at the Leitz Hektor and Ken Rockwell says "This is a conventional long lens design, not a telephoto. Its diaphragm sits right at 135mm from the image plane. The Nikkor lens shown ...
1
vote
2answers
33 views

Canon 250D not focusing on Self Timer

I want to take some smart photos of myself with my Canon 250D. I have it set to 18mm so I can stand a bit away from the tripod. I then put the camera on a 10 second self timer. Eye AF is on. When I ...
1
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2answers
60 views

Low Cost Product Photos

Buying a Canon eos 2000d. Building 2 soft light box with some white fabric and cheapo led strips with some dimming circuit. Building a white paper desk for background i have some photoshop and ...
1
vote
1answer
143 views

Random EXIF data with same camera settings

I have a few problems with exposition with my Canon 70D: with same camera settings I get random EXIF data for focal lenght and aperture. This is the setup Table with white paper as white background....
2
votes
2answers
79 views

Would a Canon EF 800 f/5.6 with a 2x extender on a Raspberry Pi camera work? (9024mm focal length, f/90.24)

The new raspberry pi high quality camera has a sensor size of 1/2.3", with a C-mount. If I attach a C-mount to Canon EF lens adapter, then a 2x extender, then the Canon EF 800mm f/5.6 L IS USM, from ...
0
votes
1answer
158 views

Can someone recommend a free simple photo editor with a tool that blends a specific details I don't want to be seen?

All I want to know is some free photo editor with which I could camouflage some details in photo like making it blend with all the colours the particular details is made of. I know that some time ago ...
0
votes
1answer
59 views

D5100 auto Lv from HDMI splitter/Switch

I am new to forums and, although I have had my Nikon D5100 for some time and feel I know my way around it pretty well, there is a feature that eludes my knowledge. I am about to embark on some live ...
0
votes
1answer
41 views

Agricultural spectrum photography and NIR [closed]

I am looking into different cameras or sensors that i could use to measure the following em ranges that are useful to agriculture. I'm hoping to construct an open source device(s) to measure the ...
0
votes
3answers
99 views

Why do Bayer images of total darkness contain stripes?

The following is a raw Bayer image from a Raspberry Pi's camera (v.2):- It was taken in complete darkness, so the image simply represents all of the various noises that accumulate on a CMOS photo ...
0
votes
2answers
89 views

Do I need to wait for new moon to get a Milky Way photograph?

I know that similar questions have been answered, but this is very specific. I know that I need as much darkness as possible, and hence the recommendation for new moon days. But, would you get the ...
0
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0answers
28 views

digikam: missing tool icons

In digikam 6.4.0 on Ubuntu 20.04: The image editor tool bar (and some menu items) is missing the tool icons. I've tried changing the theme and icon theme (the options are Adwaita and Humanity) with ...
0
votes
4answers
211 views

Apparent size of subject in two different cameras with the same resolution and focal length (or FOV)

Consider two cameras with the same resolution (let's say 640x480) and focal length (or FOV) looking at the same subject. Let's assume that the subject is in focus in both cameras. Will the image of ...
2
votes
1answer
19 views

Can I use a screw-on variable ND filter together with a square filter holder?

I have a K&F variable ND screw-on filter. I want to buy the Cokin Z series holder for graduated ND filters. Is it possible to use the Cokin Z holder with GNDs together with the variable ND screw-...
0
votes
3answers
99 views

lunar photos with telescope

So I have a Nikon D5500 and want to take an image of the moon, I also have an 8inch telescope too. My issue is when the camera is coupled to the telescope the moon takes up more than the frame, so its ...
2
votes
2answers
39 views

Best Flat Light Diffuser for a High-Intensity Flashlight

I am doing some experimentation with a compact lighting kit to use for capturing textures, hence some constraints. I am using a high-intensity flashlight like the Acebeam X80-GT placed at a 1-3m ...
1
vote
2answers
53 views

What is the “clarification” step when processing Polaroid film?

I'm translating a series of texts by photographers from French to English. I'm having trouble with the use of the term "clarification" (in French) as part of the normal processing of Polaroid film. ...
0
votes
1answer
76 views

How to adapt an old Canon lens to Sony E mount?

I just got a Sony a5100. It has a E mount lens. My mom has an old lens with an A on it. It's attached to a old Canon camera. Is there an adapter for this?
1
vote
2answers
97 views

MFD equals 4x focal length? But published specs contradict that

I spent the better part of this evening perusing the series of equations behind this popular magnification calculator. Equation F10 states d ≥ 4f, where d is focus distance and f is focal length. I ...
0
votes
2answers
23 views

Nikon D5600 err [ ] inside veiwfinder and monitor black

can anyone help me on this issue? inside the viewfinder, err [ ] , and the screen is totally black and not working.
-2
votes
0answers
83 views

Why do I literally look like a zombie on some old photos taken with an early-1990s analogue camera? [closed]

In some old photos from the early and mid 1990s, taken with a probably cheap (but far from "one-time camera quality") camera bought in either the early 1990s or late 1980s, with standard consumer ...
1
vote
2answers
220 views

How do editorial photographers work “in the wild”?

I am working on becoming a better editorial photographer. I'm not sure if I'm after "breaking news" but certainly want to focus on events that are local/national news for 1-3 days so I submit my ...
0
votes
1answer
65 views

Do I lose any photo quality with WiFi and AirDrop?

I am starting to develop more and more experience as an editorial photographer and I like to focus on current events around my city. That means that I find myself often submitting pics to Shutterstock ...
0
votes
2answers
53 views

Opening back of my film camera

I’m a newbie in this and out of curiosity, I opened the back of my Olympus mju zoom 105. The number then went back to 1, are my prev shots ruined? And if it is, do I continue taking from number 1 or ...
2
votes
1answer
62 views

How to unlock frozen ball head?

My tripod ballhead ball is frozen (locked) is position, I cannot adjust the camera position, although the main knob in the head can rotate, the ball is frozen and very stiff. Any idea how to unlock ...
1
vote
2answers
162 views

How can I compute low light performance for different formats?

How can I compare low light performance for different formats? Are there some standard equations to do this? For example, let's say I want to compare these three camera-lens combinations: Nikon ...
0
votes
2answers
73 views

Metering when using an external/basic flash

I have a Canon camera (90D) with an inbuilt flash; when I half press the shutter it fires the flash a bit to do metering I presume. Is there a way to get the same sort of behavior to aid with metering ...
0
votes
1answer
201 views

What lenses should I use for bird photography [duplicate]

I am looking for lenses to use with my Nikon D5600 that would be good for bird photography. I recently bought it and was wondering what lenses would be good. My budget is up to $400. Thanks in advance
2
votes
0answers
23 views

Minolta x-370 shutter works only without film loaded

Minolta X-370: What does it mean if the shutter advances and releases without film but will not release the shutter with film loaded?
2
votes
1answer
38 views

Erase tool partial opacity on Layer Mask?

I've been using Photoshop for years but this issue has me totally baffled. It must be some setting I changed, but I have NO IDEA why this happens or how to change it. The issue is that on layers ...
8
votes
2answers
2k views

What is the “Sunny 16” rule of thumb?

I've heard of the "Sunny 16" rule. What is it? How, and in what situations, can I use it?
0
votes
0answers
252 views

Camera's IR Filter for monochrome grayscale image sensor

We are looking for an efficient camera to use for our machine learning application (body tracking and emotion detection). Through my readings, it seems using an IR filter for our camera is quite ...
0
votes
1answer
90 views

What digital camera need for Zoom on Website

sorry for my English...I have not experienced with digital cameras.. Now build a Website and I'll have in this Website Zoom of an Image, I'll like as this, when any with the mouse up on the smaller ...
0
votes
0answers
36 views

How can i gave image to rounden faded color(I don't know what to describe it) of first image to the second image?

In Other words i want to transfer background color and roundness shade of first image to second image. I don't know how to do it. Could anyone help me? Image 1 :-) Image 2 :-)
0
votes
0answers
61 views

What's the problem here? [closed]

What is the problem here and I hope the solution because it concerns me a lot
3
votes
2answers
248 views

For a given lens/camera, will a ND filter always need same WB correction in all conditions?

I've taken a few photos with a new B+W ND 6-stop filter and found that it leaves them quite warm. I'm able to correct this in ACR using temperature/tint sliders. For the few photos I've taken so far, ...
2
votes
5answers
226 views

Can digital zoom affect focus

I was always under the impression that digital zoom has little use since the same thing can be achieved on a computer afterwards by cropping. I recently purchased a point & shoot digital camera ...
2
votes
4answers
82 views

Help with flatness and compression understanding

Hello I am trying to understand the technical parameters needed to achieve this flat look. What I understand is that higher focal length affects your image because you have to move further away from ...
1
vote
2answers
62 views

Why the photos edited on lightroom desktop looks different in mobile phone?

I am using Adobe Lightroom CC to edit photos on my computer. When I edit them on computer and export them it looks good on my computer. But, when I copy same images on mobile device then they looks ...
1
vote
2answers
47 views

4 color prints scanning

I recently got a poster scanned that sized over 218 mb, it was really a huge size. I discovered that while scanning it had pixels with CMYK 4 color process colors intact. So my question is that, is ...
0
votes
0answers
50 views

Use Sony A7RII as a webcam or tethering for Ubuntu

How can I configure my camera/computer in order to use the camera as a pc webcam to livestream and / or tethering stills? I read darktable should do the job for tethering but I cannot understand hoe ...
0
votes
0answers
11 views

How can I find photos in Lightroom Android app after reinstalling it?

I uninstalled my Light room application in Android and after reinstalling it and logged in my account all my 300 photos disappeared. Is there any way to explain how did this happen and how can I take ...

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