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How to shoot in enclosed spaces with reflective surface without any reflection and have a good quality image

For my current research project I need to take photos in a wind tunnel (A big enclosed rectangular 400cm x 100cm x 70cm). The objects are super tiny seeds that disperse on a white reflective sticky ...
Catharina's user avatar
Catharina
  • 21
1 vote
0 answers
80 views

Setup for photographing moose scat for 3d reconstruction and further analysis

I am not a professional photographer, so I ask for your indulgence in that some basics may not be obvious to me. I am in the early stages of planning a scientific study on a moose (Alces alces) ...
Galen's user avatar
Galen
  • 111
2 votes
3 answers
250 views

Color regrading/correction/calibration between photos for scientific color analysis using in-image palette

This question is not quite in the same vein as artistic photography but I feel that this StackExchange is best suited to answering the question. Closest questions I could find for further reading ...
user36847's user avatar
user36847
  • 23
1 vote
1 answer
291 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
learner's user avatar
learner
  • 119
4 votes
2 answers
307 views

Why are mid-day images dull?

When I take pictures at mid-day, well before the golden hour, my images are usually dull. They seem hazy, low in contrast (perhaps due to haze?), and lacking in saturation. My suspects: Sensor ...
icor103's user avatar
icor103
  • 739
2 votes
3 answers
493 views

Organize photos for many overlapping projects

I am working with a larger collection of photographs (~10,000) for my PhD thesis (in biology) and I am currently struggling with the organization of these. Sorry, if this question is in the wrong ...
bamphe's user avatar
bamphe
  • 121
5 votes
6 answers
1k views

Does a long exposure in DSLR camera have a similar effect to a global shutter?

Regular DSLRs make use of mechanical shutters and progressive electrical readouts, and hence images are captured in a rolling shutter. But, when used to capture pictures with a long exposure, where ...
karthikeyan's user avatar
karthikeyan
  • 219
2 votes
2 answers
166 views

How to optimize detection of brightness changes in an immovable object?

My task I want to use a digital camera to capture slow changes of an object for scientific purposes, subject to the following constraints: The camera is a Canon EOS Rebel T5i. The position of the ...
Wrzlprmft's user avatar
Wrzlprmft
  • 163
2 votes
1 answer
715 views

Calibrating monitor with lab spectrometer

I'm trying to calibrate my monitors. But I'm wondering if I can avoid buying another piece of equipment by using a lab spectrometer (in the past I've always just calibrated by eye). I'm a PhD student ...
NeuralLotus's user avatar
NeuralLotus
  • 21
5 votes
4 answers
2k views

What tiny lens to shorten the focus on a tiny camera?

I'm trying to set up a tiny camera for a tiny science experiment. The camera is an OmniVision OVM6211: It's pretty much a 3mm cube, containing the image sensor and all the lenses. It has a 90º FOV ...
Rocketmagnet's user avatar
Rocketmagnet
  • 153
1 vote
3 answers
2k views

How to calculate the distance of an object in a photo?

I am going to be carrying out some experiments for school in physics class where I will need to calculate the distance a tennis ball travels. I am going to be filming it, and I was wondering if a ...
Dihya Hajee's user avatar
Dihya Hajee
  • 19
0 votes
1 answer
227 views

How to get Canon 1200D quantum efficency plot?

I've searched quantum efficency of Canon 1200D and I found some images like here: http://www.deep-sky.co.uk/imaging/dslr/dslr.htm . How these people get quantum efficency plots for mentioned Canon 40D?...
Tarhan's user avatar
Tarhan
  • 101
12 votes
2 answers
1k views

Raw photo for scientific purpose. How to set white reference to defined numeric L*a*b value?

I need a scientific raw photo for colour analysis. I shot with a reference gray card which has a defined Lab color space L=70*a=0*b=0. I need to balance the photo with L=70 in camera raw. Is it ...
Borexino's user avatar
Borexino
  • 223
1 vote
2 answers
174 views

How can I connect a cheap digital camera to my 1960s spectrometers?

I teach physics at a community college, and for use in our lab course we have a nice set of 1960s spectrometers that each contain a telescope. (For a description of the optics, see my lab manual, lab ...
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user21068
0 votes
1 answer
591 views

What settings should I use on a webcam to get accurate light intensity measurements?

I hope I am not in the wrong place to ask this kind of question since it is more about image acquisition than photography. I have to use a Microsoft Lifecam HD webcam to take snapshots of a laser ...
gfole's user avatar
gfole
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3 votes
3 answers
669 views

Help with Scientific Cannabis photography [duplicate]

I work in a marijuana testing lab in Washington. Part of our workflow is to capture an image of each sample as it is weighed, for later reference/analysis. We're pretty excited to be creating high ...
Ethan BB's user avatar
Ethan BB
  • 33
3 votes
1 answer
674 views

Measure rolling shutter severity of image sensor scientifically [closed]

Is there a way how to measure the "severity" of the rolling shutter (RS) effect for a given image sensor? By severity I mean how slow the image read-out is done for every single frame. The slower the ...
Kozuch's user avatar
Kozuch
  • 161
0 votes
1 answer
252 views

about luminance and illuminance: what is the difference? [duplicate]

First of all, let me say that english is not my first language, so please excuse any mistakes that you could meet from here on out. I read several articles and explanations about luminance and ...
marco's user avatar
marco
  • 165
2 votes
5 answers
597 views

Does an aperture value exist, where a lens creates a brighter image than the real view?

So (without limitations of the viewfinder for example) looking through the viewfinder creates a brighter image than normal view would be. The lens would then work like a funnel(collects light from ...
FW.'s user avatar
FW.
  • 432
5 votes
3 answers
537 views

What's the best way to light still-life photos of leaves?

I just want to make a set of still-life photographs of leaves, with totally controlled lighting. I'd like to be as "scientific" as possible, but I don't know how to light my set. Frontal direct lights ...
nkint's user avatar
nkint
  • 165
2 votes
1 answer
489 views

Stereoscopic images

Disclaimer: I know this is probably the complete wrong place to ask this. But seeing as there is no Tattoos.stackexchange I will give it a shot because at its core, this question is down a ...
Tom Fobear's user avatar
Tom Fobear
  • 123
7 votes
2 answers
2k views

What is the lowest level of luminous flux a camera can detect?

In the past, I've asked about taking photos of luciferase. Now I'm curious how weak of a light source I can detect. From How many photons per second is one Lumen? on Physics Stack Exchange, I can ...
bobthejoe's user avatar
bobthejoe
  • 285
9 votes
2 answers
517 views

What type of camera setup is required to take photos of luciferase?

I'm working with luciferase which has a wavelength of blue 480 nm and I want to be able to take a photo of it. The trouble is, I can see the luciferase glowing in all of its glory in front of me but ...
bobthejoe's user avatar
bobthejoe
  • 285
7 votes
4 answers
1k views

What's a fairly simple way of taking a photo through a microscope?

I have a simple microscope, with only one lens (though two eyepieces). Is there any way to do this, without too much money and modification?
Tuesday's user avatar
Tuesday
  • 253
8 votes
2 answers
4k views

What is "solid angle" and how does it relate to photography?

So, I was hanging out in the chat room, and hear mention of something called "Solid Angle". What is this, and how can it be important?
PearsonArtPhoto's user avatar
PearsonArtPhoto
  • 11k
10 votes
3 answers
8k views

What are the consequences of making camera bodies black?

Considering that silver and other camera colors are outsiders, I wonder if there is a specific reason to make black camera bodies. I can think of several "marketing" reasons (discretion, first, or ...
drolex's user avatar
drolex
  • 644
22 votes
4 answers
5k views

What are good advanced books on the physics and science of photography?

I am looking for books about the physics of DSLR, including modern photography optics and sensor electronics. If I already have some books on optics and electronics, I have found fairly hard to find ...
drolex's user avatar
drolex
  • 644
19 votes
2 answers
16k views

What is the difference between luminance and illuminance?

The more I read about this, the more confused I become. Illuminance, as I understand it, measured in lux, is the perceived brightness of light on a surface. It's what you'd measure with an incident ...
mattdm's user avatar
mattdm
  • 144k
16 votes
2 answers
2k views

What is the inverse-square law, and how does it apply to lighting for photography?

I hear photographers talk about the inverse-square law, particularly with reference to lighting. What is this law about, and most importantly, how is it applied to lighting for photography?
drewm's user avatar
drewm
  • 476