All Questions

0
votes
2answers
27 views

How to capture sharp images of multiple objects on a wall?

I need to photograph a wall with multiple paintings with every painting under sharp focus. I believe depth of field doesn't play here as all the objects are at same distance. I tried with higher ...
0
votes
3answers
68 views

What is the proper name of this camera shot?

It looks a concave shot. But I am weak in photography. What is the proper name of this camera shot?
0
votes
3answers
85 views

Why isn't glass transparency part of the exposure calculation?

The F number is a ratio calculated purely from the focal length of the lens and the size of the aperture. Any light meter talks in terms of F, Shutter, and ISO. Different glass, or just different ...
0
votes
0answers
51 views

Nikon D850 is worth buy ? After Nikon launched mirrorless series ? Which one is better? [on hold]

Recently i have bought Nikon D850 with 24-120 mm VR lens, Few months after Nikon announced mirrorless series Z7, Z6. Has i made any mistake with Nikon D850 ?
0
votes
1answer
34 views

Best tools and equipment to digitise film negatives with DSLR, without breaking the bank

I am considering buying Lomography DigitaLIZA film masks for both 35mm and 120mm film to use within my digitisation process, however I am unsure of the best methods around the other areas of my ...
0
votes
4answers
33 views

How many minutes should I develop Ilford HP5 in Rodinal 1:50?

I shot some rolls of HP5, and planned on developing it in Rodinal. But I got a little confused when I looked at the suggested DevTimes, most sources (incl. MassiveDevChart) give about 11-13 minutes ...
0
votes
0answers
17 views

How long is the range of Canon ST-E2 speedlite transmitter in practice?

I just ordered a used but working Canon ST-E2 speedlite transmitter because it was so cheap that it cost practically nothing. However, the ST-E2 hasn't arrived yet. My flash has support for ST-E3-RT ...
7
votes
4answers
2k views

Is camera lens focus an exact point or a range?

I have often wondered if the focus of a lens at a particular focal length is an exact point or a range within a few mm. This beccomes all the more important when manual focussing. And how much leeway ...
2
votes
1answer
65 views

Why do colors in Photoshop look different from Lightroom?

I know there's plenty of questions like this and I've tried all the provided solutions, but I think my issue is slightly deeper than that. I have noticed that when I do an external edit from ...
0
votes
1answer
28 views

Queuing panorama rendering on Lightroom

I have a whole bunch of panoramas to render on Lightroom. The problem is that when I render one, my PC is dying and I can't really do much with it, much less continue using Lightroom to develop other ...
2
votes
1answer
66 views

Automatic & intelligent crop 1,000 images

I have about 1,000 scanned / photographed images, each with different formats but all with rectangular/square shape, that need to be cropped to remove the background and the white space around the ...
1
vote
1answer
25 views

How do I get a Yongnuo YN-685 to wirelessly fire in MULTI with the YN622N-TX?

I would like to use this setup so that two flashes both fire multiple times until the shutter closes. I can get the flashes to do this individually when attached to the camera, and I can get both to ...
0
votes
1answer
84 views

Transferring a lossless image from an iPhone

asking for a friend. He has an iPhone 5 with a number of crisp photos on it that he wants to move to his computer. However, on moving them to his PC via file explorer, they appear to lose a certain ...
4
votes
2answers
1k views

What is this called? Old film camera viewer?

I don’t know what it is, but I found it at a thrift shop. You put the little white squares that are in the back into it, look through the lens and you can see the pictures. I found it super ...
0
votes
1answer
23 views

Canon 200d/SL2 real time metering

The light meter only updates after pressing the shutter button half way. Is it possible to show it before the shutter is half way pressed.
2
votes
2answers
55 views

Filter holder adaptor with Canon's EF 8-15mm f/4L Fisheye USM lens

I'm interested about using ND filters with the Canon 8-15mm fisheye, but I'm not finding information about which alternatives are available. Are Format or Lee sw150 compatible with such lens? If ...
4
votes
1answer
104 views

Why are image colors inconsistent in different applications after monitor calibration?

I have calibrated my monitor using a colorimenter, however I found out that the colors appear different in different applications. I have created two test images and opened them in several ...
0
votes
1answer
23 views

Bucket tool based on lower layer in GIMP

In GIMP, I want to use the bucket tool to fill in certain areas of my image, but I'd like to do it on an upper layer rather than directly on image. I think I need to tweak some of the layer settings ...
12
votes
2answers
865 views

How do apertures which seem too large to physically fit work? [duplicate]

A 400mm f4.0 lens is supposed to have a maximum aperture diameter of 10cm. Looking at such a lens they don't seem big enough to fit that kind of aperture including all the mechanics for control inside ...
0
votes
1answer
42 views

Which brand 1.4 Teleconverter ensures autofocus for Sigma 150-600mm C other than TC 1401 sigmas own

I have a Kenko tokina 1.4 teleconverter. When attached to 150-600mm C sigma lens and camera switched on, it shows Err01. However if the electrical contacts of the teleconverter are blocked with a tape ...
0
votes
3answers
84 views

Is it normal to see focus inconsistency frame-to-frame with an f/1.4 lens?

I have the Nikon Sigma 85mm 1.4 and I've noticed some inconsistency with focus. I setup a tripod, and a lens calibration card in an attempt to micro adjust the focus. However, what I noticed was that ...
3
votes
2answers
539 views

Why are there dark corners when using Sigma 85mm F1.4 EX DG HSM with Canon 80D?

When using a Sigma 85mm F1.4 EX DG HSM with Canon 80D, a bright circle with dark corners appears in images shot at F1.4. Above F1.6, it doesn't appear in image, but does show in live view. No hood or ...
0
votes
1answer
52 views

How do you put on 55mm Vivitar Wide Angle Lens and Telephoto Lens on a 18-55mm Nikon D3300?

I have a Nikon d3300 with 18-55mm lens. I bought 55mm Vivitar Wide Angle Lens and Telephoto Lens. And it won't screw on. Do I need an adapter?
-1
votes
2answers
107 views

Software to convert b/w photos to colored photos [on hold]

Please advice program to convert b/w photos to colored photos. Mainly, for portrait photos, so I need colorization algorithm that gives correct color rendering of human faces and skin. The other ...
0
votes
1answer
39 views

Automate change background to white on all images?

I am working with model images that our standard images have to be the item with white background. Ive had vendors sending me images with their item only with off white background and I have to do 600 ...
0
votes
0answers
38 views

Compatible mobile instant image printers for Canon DSLRs

I'm looking forward to buying one of those neat mini instant images printers. Here's a chart from this article comparing some of them. (At least) The Instax SP-1 and Kodak Mini 2 are missing. I would ...
0
votes
2answers
62 views

Canon Rebel T5 DSCR zoom lens recommendation

I am going on an Antartica cruise and want to take long distance photos from my balcony and want a zoom lens that won't kill my budget (can't afford those $2,000 lens'). Would appreciate any ...
0
votes
0answers
44 views

Scanned paper has noticeable “missing columns”

Scanning with an EPSON Perfection V39 shows two of these missing columns of pixels on an A5-ish sized paper. The scanner is brand new. Does this issue stem from the hardware or the software?
-2
votes
3answers
150 views

What are the odds of breaking a camera by opening it?

Mode selector of my DSC W610 started to change the modes for no reason and I want to "correct" it but I am afraid of breaking the camera. I have heard opening cameras will literally fill the sensor ...
0
votes
1answer
61 views

How to correctly apply gamma to linear raw files from a machine vision camera?

I am using a machine vision camera that, according to the manufacturer, produces linear pixels. As a result, I need to apply a gamma correction to the image before I can view the result. However, ...
1
vote
0answers
68 views

Need camera suggestion for identifying text on engraved matte metal, to collect data for a machine vision application [on hold]

The project objective is to read engraved text on matte metal surface. Like below: The target (targets) is moving on a conveyor belt and contains both text and numbers. We have a plan of trying ...
0
votes
1answer
52 views

How to identify the original manufacturer of lenses branded Soligor?

There are Soligor-branded lenses for which I wish to identify the manufacturer. I have read that Soligor encoded the manufacturer in the serial number, so in principle, I just need to find a list of ...
6
votes
0answers
61 views

Who were the Bauhaus photographers and what was their impact on commercial and artistic photography today?

The Bauhaus was a German art, craft, and design school which operated between the World Wars. I was recently at an exhibit of works — mostly paintings, architectural drawings, and sculpture — which ...
0
votes
0answers
25 views

Canon i9900 prints blotchy photos

All of a sudden my Canon i9900 printer is producing blotchy photographs on glossy paper. Looks something like printing on the wrong side of the paper. Up until now photos were very sharp and accurate....
0
votes
1answer
37 views

Photoshop create absolute Selection from “Select Color Range”

I've selected a color range with Photoshops "Color Range" tool, but the selection is a bit transparent. I want to delete the selected color. Is there a way to make everything completly selected or ...
0
votes
1answer
20 views

Nikon 3500 using snapbridge

On a Nikon 3500 is it possible, on Snapbridge, to see the what the camera lens sees before the picture is taken? If so how?
1
vote
1answer
63 views

Do I need permission to use images of real estate properties we manage?

Hi I work for a property management company and we'd like to use images of the properties which we manage within our portfolio on our website and social media/marketing materials. They are just ...
0
votes
1answer
77 views

Photographers : One or Many Social Personalities [duplicate]

With photography covering such a wide range of topics, it's clear that a lot of photographers are likely to face an issue when it comes to being active in social circles - You don't want to expose ...
2
votes
3answers
51 views

Yongnuo Updated YN600EX-RT II Flash not linking with Canon 77D

I think I've done everything in the manual and instructional videos I've watched, but I can't seem to get my new Yongnuo YN600EX-RT II flash to link up with my Canon 77D using the Easy Wireless setup. ...
2
votes
4answers
239 views

Why do moon shots bring out the worst in telephoto lenses?

Assumption: The moon is just monochrome rock with some coarse structures, any old telephoto lens (including cheap 500/8s or junk mirror lenses) that is capable of taking a recognizable photo at all ...
2
votes
1answer
83 views

High resolution photography with C API and optical zoom [on hold]

I am currently looking for solutions to take high resolution photos of objects via a dedicated software. (The software will be developed by myself.) Therefore I am looking for ideas for cameras, where:...
1
vote
1answer
25 views

Mavic Pro 1 Infinity focus problem

1 Hello everyone, I am very new to flying drones. I have bought a second hand Mavic Pro 1, and it has this strange issue of focusing at night. Whenever I try to focus to infinity to get a broad DoF, ...
0
votes
1answer
65 views

What is the difference between the various image-stabilized Canon 18-55mm lenses? [duplicate]

I'm looking at buying a new 18-55mm lens as the one that came with my 4000D doesn't have image stabilisation, which I really need. It seems like canon have made many EF-S lenses over time that all ...
0
votes
2answers
128 views

Can you turn a 60mm macro lens into a 100mm macro lens?

I have a Canon EF-S 60mm Macro lens. Can I add an extension tube or teleconverter to emulate a 100mm Macro? If not, is there a solution?
1
vote
2answers
55 views

How do you test/adjust a handheld spotmeter's calibration?

Is there a standard method to test the calibration of a handheld spotmeter? I got a Pentax Digital Spotmeter and I want to figure out if the readings are accurate and, if not, if there a way to ...
4
votes
3answers
173 views

What enables the Canon RF 70-200 f/2.8 to be much smaller than the EF version?

Canon announced the RF 70-200 f/2.8L in February 2019. This is notable for being much smaller than the equivalent EF lens, being perhaps two thirds of the length, yet maintaining the speed of the EF ...
-2
votes
1answer
45 views

Can I use a Godox V860 flash with the X1T wireless trigger? [closed]

How do I use a trigger without a receiver? I use a Godox V860 flash.
2
votes
2answers
97 views

Are typical camera bag materials enough for non weather sealed DSLR in 5 minutes of medium rain?

I have a non weather sealed DSLR (Canon 2000D) along with a bunch of non weather sealed lenses and other equipment. I am for obvious reasons not planning to use the camera outdoors in rain, snow or ...
-1
votes
0answers
69 views

What camera shoulder bag to choose for small DSLR with 2-3 extra lenses and flash? [closed]

I would like to purchase a camera shoulder bag to fit a small DSLR camera with an attached lens, 2-3 extra lenses and a flash. The collection of lenses I am planning to carry can vary depending on ...
0
votes
1answer
43 views

Lumix GX9 build and weather seal quality as travel camera

I am aware that Panasonic Lumix GX9 is not weather sealed. I would like to use it as travel camera, which means all possible weather factors, also sometimes thrown without cover in backpack hiking ...

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