All Questions

5
votes
3answers
115 views

(How) were FoVs discussed before the 35mm became de-facto standard?

Ever since the 35mm small frame gained popularity in the mid-1900s it's well known (and perhaps lamented) the particular crop factor became a de-facto standard by late 1900s when people discussed ...
-1
votes
0answers
90 views

How bad is a 51% sRGB screen for photo editing?

How bad is a 51% sRGB screen for photo editing? The screen in question is a 13 inch full HD display.
0
votes
1answer
100 views

Sony A7 and A9 Camera Sensor - Why are the edges of the sensor beveled?

I recently cleaned my Sony Mirrorless camera sensor using both a rocket blower and a wet cleaning solution. I was able to successfully remove all the dust/smudges, but I do still have some dust on the ...
0
votes
1answer
56 views

What camera should I get for taking portraits and filming interviews? [closed]

Sorry if that was awkward to understand. I used to do photography in school and really enjoyed it but lost the passion as soon as I left, I've now accepted the offer to help a friend with his esports ...
0
votes
3answers
75 views

How will a teleconverter affect the sharpness of a lens at a given aperture?

If I have a 200mm f2.8 lens and apply a 2x teleconverter the effective focal length and aperture becomes 400mm and f5.6. However, I am unsure about the effect this has on other aspects, such as image ...
0
votes
2answers
90 views

Better dynamic range with film

I've read upon many online resources that the dynamic range of film is usually between 9 and 11 stops. However, it is frequently mentioned that 17 stops can be achieved with additional tricks in the ...
0
votes
0answers
38 views

Measure object size. Camera calibration range? [closed]

I need to calibrate a camera to measure planar objects length/size. I know that I have to find/calculate the camera intrinsic and extrinsic (rotation and translation matrices) parameters using ...
2
votes
3answers
59 views

How do monitor and image editing software color profiles interact?

I've Googled, I've Bing-ed, I've even DuckDuckGo-ed, but I can't figure this out. Here it is: My monitor has its own color profile, currently "eyeball" calibrated but soon to be really calibrated. ...
0
votes
0answers
39 views

Take photo of a person in front of lit skyscrapers at night [duplicate]

I have Nikon a D5600 camera. I am looking for a proper technique to capture persons in front of lit skyscrapers in the background. I do have a Nikon's 50mm, f/1.2 lens but at aperture 1.2, the ...
1
vote
1answer
59 views

Does EOS utility fully work with other (non canon) lenses?

I only used canon lenses with EOS Utility before and now I'm looking to buy a new sigma lens. My question is: would fine focus adjustments when shooting tethered still work with other lenses? Edit: ...
0
votes
2answers
146 views

What would a 10-300 f/1.4 lens (such as for a spacecraft) look like?

My basic question is, what would a fast lens with a huge zoom range look like? This question has been asked and answered for photographers on the ground - the answer was basically (rightfully) "no ...
0
votes
1answer
44 views

Use Canon DPP only to correct lens for my Powershot G7X Mark II and export RAW [duplicate]

I recently bought a Canon Powershot G7X Mark II. I am using Linux and I found darktable to be a decent photo editor. However, my RAW pictures come with a distortion which darkens the corners and ...
1
vote
2answers
160 views

How can I eliminate glare from stage lights when taking concert photos?

I have a problem that I have not been able to solve involving glare. I shoot a lot of concert photos from 6-12 feet away. I keep getting glare from the lights. I have used a hood, filters, various ...
0
votes
0answers
32 views

What size filter or petal hood for Canon Rebel T6? [duplicate]

I know it sounds like a vacuous question. However, I have not been able to find info on this topic. Sizing of filter and lenses. I bought some filters for my camera and they didn’t fit. Camera sets ...
3
votes
2answers
91 views

Does shift based perpsective correction have any effect on focus?

Consider a photographer with an SLR camera and a PC lens attached in its default, unshifted position, standing on the ground at the base of a columned building whose height is X times that of the ...
4
votes
1answer
78 views

Only certain part of 120 film underexposed

I shot a 120mm film for the first time on my Kiev 60 camera and 11 out of 12 photos were underexposed but only on the left side (almost totally black) like so : What I did so far : Tried taking ...
0
votes
2answers
91 views

What lense and flash should I get to take pictures of kids?

I'm new to having a camera and I'm not sure how everything works with my DSLR. I have a T6, and I would like to take pictures with flash without the kids squinting and that it is fast when I shoot. I ...
1
vote
2answers
120 views

Why do 1800s black-and-white portraits look godlier and more solemn than modern color portraits?

I'll instantiate with portraits of these US Supreme Court justices: Stephen Johnson Field (November 4, 1816 – April 9, 1899) Rufus W. Peckham (November 8, 1838 – October 24, 1909) John Hessin ...
0
votes
1answer
27 views

How to change Date Taken based in file name?

I have a huge collection of photos from 1999 to 2019 and many of them don't have "Date Taken" registry, but all of them have the date in file name, like YYYY-MM-DD and YYYYMMDD. But when I uploaded ...
0
votes
1answer
62 views

Zoom lens moving due to gravity [duplicate]

I own a Canon EF-S 17-55mm f/2.8 IS USM Lens. The other day I was trying to take a photo with the camera pointed directly towards the ground and mounted on a tripod. When I let go of the lens after ...
3
votes
1answer
88 views

Why does a non-linear relationship exist between noise level (of dark frame) and ISO setting

According to Does changing the ISO of a modern digital camera really change the gain of an electronic amplifier?, the ISO physically amplifies signal in analogic way, so it is more effective than ...
0
votes
3answers
72 views

Thoughts on using Sigma 18-250mm F3.5-6.3 DC MACRO OS HSM for Macro photography

Is the Sigma 18-250mm F3.5-6.3 DC MACRO OS HSM a good lens to be used for Macro photography? I mostly try to photograph flowers and also insects sometimes. I will be using it with a Canon EOS 800D and ...
4
votes
0answers
62 views

What is this streaky Cyanotype artifact?

So I made some cyanotype prints for the first time. So much fun !!! :D However I seemed to be getting some artifacts in my highlights See around the ship: Original to compare: So after ...
3
votes
2answers
2k views

Canon EOS 800D vs 80D | Which one is better for macro photography?

I am looking to buy a new camera body primarily for Macro photography. I am currently shooting on a 2008 spec Canon EOS 450D, but want to upgrade. I have a budget of AUD$1000 and am looking at either ...
0
votes
1answer
181 views

Camera Broken? All Images White…camera takes pictures but when I view them it it just a white screen

I have a Samsung NX3300 and had it for 3-4 years and I've found a few answers but no ways to fix it (e.g., at DP Review and Tom's Guide). I can see it fine as I'm taking the image but if I view it ...
1
vote
3answers
163 views

Why doesn't full frame have faster shutter speed than crop (all other things equal)?

I enjoy amateur wildlife photography, and have always used crop camera bodies + long lenses, and usually shoot handheld. Obviously the main difficulty is that I need very fast shutter speeds to get ...
0
votes
1answer
45 views

Viewfinder shaking in my sigma 18-200 lens with Canon eos1100d

So, I dropped my camera yesterday wasn't a big drop and it was in its bag but today when I tried to use it the viewfinder has got an almost constant shake on it and all the photos are out of focus. ...
2
votes
0answers
95 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, ...
0
votes
1answer
39 views

How exactly do I use RawDigger to evaluate signal-to-noise?

I have a trial copy of RawDigger installed, and I understand that for my purposes I should shoot the same subject at different apertures to see if the SNR decreases at faster settings. But how ...
0
votes
4answers
153 views

How to calculate focal reducer crop factor for APS-C to MFT?

As far as I can tell, the crop factor determines the size of the projected image circle and should match the ratio of sensor diameters (with standard mount forward / backward distance). My ...
2
votes
2answers
171 views

Nikon Lens makes buzzing / humming noise when VR is on - is this normal?

I was given a Nikon AF-S VR Micro-NIKKOR 105mm f/2.8G IF-ED lens as a Christmas gift. It takes great pictures, but one thing I noticed immediately is that it makes a buzzing or humming noise when ...
0
votes
2answers
119 views

Low light photography using Nikon D90

I have a Nikon D90 with an 18-105mm lens (though I am unsure of the aperture range). I get excellent results in good light levels (despite the body being somewhat outdated), but struggle in low light ...
-1
votes
0answers
24 views

Live view colour problem in nikon-d3100

Just come up with this problem and i don't know how this problem occur in my nikon d3100 can anybody please help what is the cause for this issue...live view just got green borders.
6
votes
6answers
742 views

How to produce smoke for studio photography

I'm photographing small objects (3 to 5 cm height glass jars) inside a laboratory and want to add a little bit of smoke for extra context. Because I'm inside a lab it's not suitable to use smelly ...
2
votes
3answers
144 views

What are the technical reasons to design lenses with oddly shaped apertures?

Some lenses have oddly shaped apertures, like star or shuriken shaped. It seems to be intentional since making "normal" rounded or polygonal apertures is fairly simple (as I have observed while ...
0
votes
1answer
77 views

How is a lens's listed minimum focus distance affected by zoom?

I have a 55-210 zoom lens, and the specs show that the minimum focus distance is 1m. Does that distance remain constant if I use the zoom? Or does that change it? Thanks in advance!
1
vote
0answers
40 views

How to handle the tone curve (linear/medium/high contrast) and the other development settings?

I use Lightroom 6.x and I usually start with a linear curve, adjusting the sliders in the "Basic" section accordingly. The Tone curve section usually does not even get opened. This because I'm not a ...
5
votes
2answers
64 views

What kind of lenses with a “slightly different diffraction behaviour” were used in “large format photography in the 1980s”?

Referring to an interview with a lens expert (Krolop&Gerst Objektivreihe 17/32), discussing diffraction limits. "Es gibt ein paar Spezialobjektive die haben ein bisschen anderes Beugungsverhalten,...
2
votes
2answers
60 views

In photoshop (CC), is there a way to apply the changes made to one CR2 (.xmp) to all my other (.CR2) photos?

Editing pictures in CR2 and after applying a few hours of settings to one picture, I would want all my other pictures to have that same setting applied to. Possible? Is there a way around using the ...
1
vote
2answers
43 views

“Focal Distance” / “Depth of field” of endocsopic and (car) backup cameras

In a nutshell, my question is: Why is the depth of field for endoscopic cameras so limited? It seems it is generally around 3 to 8cm (some are around 3 to 40cm). Why aren't they similar to automobile ...
1
vote
1answer
69 views

How do I look for someone to make professional reproductions of photographs? [closed]

PLease can anyone help me finding professional for duplication photos? I dont know what or who to search for or the proper title of the job.
0
votes
2answers
113 views

Which Nikon mount adapter to get for micro four thirds?

I just bought a MFT Panasonic Lumix GH3, and I have no lens for it. I found that I can put an adapter in order to use my Nikon lens. On the adapter it says: Nikon(G) to micro for thirds. I'm a little ...
0
votes
1answer
80 views

Why doesn't Adobe DNG converter recognize files from my new camera?

I want to convert ARW files of A7III in adobe DNG converter but unable to do it. It is showing a prompt that no raw file is present in containing folder. But works perfectly with my A7SII raw files. ...
3
votes
0answers
49 views

Any ideas what the work by Tim Booth may be influenced by?

I'm doing a project for "A Level" photography, looking at taking my own photographs like Tim Booth, but struggling to find any related photographers. I found the work of John Coplans, but just ...
2
votes
1answer
96 views

What are the differences between projector, enlarger, and macro lenses for photographing 35mm slides?

I have some 35mm slides that I would like to digitalize. I am thinking about building something like this (modifying a slide projector to feed the slides and mounting a dslr to photograph the slide ...
1
vote
0answers
94 views

Can my camera be saved? Or is it time to get a new one?

I am a beginner photographer and owner of the now obsolete Sony NEX 5-R mirrorless camera (bought in 2012). It has been 1) increasingly saying "cannot recognize lens" and 2) seems to have a really ...
1
vote
1answer
59 views

What causes the rainbow colours on part of my LCD screen?

I have a Canon Powershot SX540. When I am taking pictures my LCD screen displays some rainbow colors. Can anyone help fix this?
3
votes
4answers
230 views

Which lens should I purchase?

New to photography and have found myself wrapped up in it, what an exciting and fun art form! I have a Canon Rebel T6 (1300D) that came with the standard kit lens as well as a 75-300 lens that came as ...
15
votes
4answers
4k views

Why have all negatives been exposed to one frame?

I recently shot a roll of kodak 200 (36 exposures) and got them developed on the high street and all 36 shots have been exposed onto one frame, shown on the attached image; all other 35 frames are ...
1
vote
3answers
141 views

A projection of a real-image is one fixed perspective, but looking through the lens with my eye, I see many perspectives. Why?

Assume that I have a camera obscura (with a large lens - something like a magnifying glass) setup projecting an image of some still life. I look at my projection on my projection plane and I see one ...

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