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3
votes
1answer
317 views

Why are ISO settings not available/grayed out on Nikon 5100 in auto mode?

I have a Nikon 5100 and the option to change the ISO settings on Auto mode isn't available. The option is grayed out and it's stuck on auto. The ability to change ISO setting is only available when ...
2
votes
1answer
54 views

How can I convert a panorama to “Google Sphere” / Panorama for “Google Views”?

I have this panorama: https://www.dropbox.com/s/1e0qz92jsb4xibe/test-3000x1500.jpg?dl=0 I edited it in Photoshop and uploaded it to Google, but it isn't recognized as a panorama any more. That's why ...
3
votes
2answers
138 views

Can a Samsung NX300 shoot without a lens, for attaching to a telescope?

Can I take pictures on my NX300 without a lens attached? I have read threads about this, however my issue is somewhat different. I want to attach my camera to my telescope, and take astro-pictures. I ...
3
votes
0answers
39 views

Where can I find information on the Pentax Q lenses serial protocol?

I'm searching for detailed information on the Pentax Q lenses (any, but I'm especially interested in the 5-15mm-lens) serial protocol, which controls focus/zoom/aperture. So far I have found nothing ...
3
votes
3answers
108 views

Why is my camera focusing fine in liveview but getting it wrong with the viewfinder?

When I first got my Yongnuo 50mm f/1.8 it would not focus through the viewfinder. It will always miss (95% of times). Yet it worked fine in liveview. And now, recently, I started noticing the same ...
0
votes
2answers
74 views

Macro/infant photography lens for D5500 [closed]

I currently have a Nikon D3100 with the kit 18-55mm lens, which I have decided to sell. I am looking to start getting more 'into' photography, and me and my fiancee have a baby on the way which we ...
0
votes
2answers
99 views

Why does my Sigma lens make a high-pitched ringing noise on my Canon camera?

I have a Canon EOS T3i 600D. When I use a Canon-branded lens (18-55mm), the camera works well. When I change to the Sigma macro 18-250mm and turn the camera on, I can hear a ringing noise, like ...
0
votes
2answers
79 views

How can I change the eye color in a photograph? [closed]

Is there any way how I could change the eye colour in a portrait picture? Would like to know all the ways that I could use to edit.
0
votes
1answer
48 views

Readout time vs Frame rate of CMOS sensor

In many articles about CMOS sensor, I usually find that the relationship between readout time and frame rate is: (1) Readout time=1/Frame rate But Jia, C., & Evans, B. L. (2013, December) ...
0
votes
2answers
82 views

When does the first row of the next frame of CMOS sensor begin its exposure?

I want to ask about the starting time of a new frame in a sequence of frames captured by a CMOS sensor. Assume that the readout time of the entire sensor is 10ms, and the exposure time is less than ...
1
vote
3answers
101 views

Night Sky SuperResolution (instead of star trails) - possible?

I don't know if this is possible, or runs into fundamental limits of sensors and photo sharpness. I want to "pretend" that I have a fancy night sky motorized rig - through software. Take a few ...
0
votes
0answers
46 views

How to open CR2 files that were not properly pulled from memory card [duplicate]

So I'm very new to all this so please understand my pure panic here... During a shoot the other day I had to quickly dump a card on my hard drive before erasing it and continuing shooting. The images ...
3
votes
2answers
193 views

How can I tell if a Canon lens is made in Japan?

Are there physical differences in or on Japanese Canon lenses that would indicate they are from Japan? And how do I identify a Canon lens that was manufactured in the US?
-1
votes
0answers
34 views

What is a good resource for used lenses other that eBay, Amazon, or local store? [duplicate]

I am trying to find a decent buy, sell, trade forum, group, or something along the lines that is a good resource for photographers to find equipment.
0
votes
1answer
51 views

how to calculate “FocalLenIn35mmFilm” with limited metadata

Im creating an app that uses "FocalLenIn35mmFilm" to calculate feild of view(FOV). unfortunately not all photographs contain this property in their meta data, the Motorola Nexus 6 is an example. The ...
0
votes
2answers
117 views

How do I connect Leica Summicron-M 1:2/50 E39 lens to Canon EOS 5D body?

Could anyone recommend what I need to buy in order to connect a Leica Summicron-M 1:2/50 E39 lens to a Canon EOS 5D body? Do I need a bayonet lens adaptor and if so please let me know which one?
0
votes
1answer
82 views

Camera sensor size vs pixel size and focal length [closed]

I've already seen the answer about the crop factor. I'm writing a small software for motion tracking (from two cameras, videos) in 3D space and research. To do that, I need some information about ...
0
votes
1answer
65 views

Nikon D3100 Squeaky Lens Problems?

I've been using my Nikon D3100 and it all worked fine, until today, I tried to take a picture and pushed the button and started making a noise like the lens was working when I had it set to Manual I ...
1
vote
2answers
91 views

In what type of conditions do I use a polarizer on a 300mm lens?

I found the questions relating to polarizers, but haven't found any info on a 300mm zoom lens with a polarizer. Is this because it is not suggested to be used on 300mm zoom lenses? I use this lens to ...
1
vote
2answers
41 views

How to fire a Pentax AF 360 FGZ flash with a canon 7D camera

I have a Pentax AF 360 FGZ flash and a Canon 7D camera. Different hardware I know. But I want to be able to fire the flash, possibly using a remote trigger that would allow me to remotely take the ...
9
votes
3answers
457 views

Why are the colors so different in these two photos from different cameras even though I set white balance to the same temperature in Lightroom?

I have a Nikon D750 and D800e. I was attempting to run an ISO test on the two, but I can't put my finger on why the two came out with such a different color balance. Here was my method: Put D750 ...
1
vote
1answer
61 views

How do I clean the grime spots I'm seeing in my camera's viewfinder?

I was going to take photos one day and noticed these green/brown spots when I looked through the viewfinder of my Nikon D3200. So I took a couple shots to see if they showed up, but they did not. I ...
0
votes
2answers
70 views

What workflow can I use to work on photos on two different machines?

I want to work with photos, like in Lightroom, but I want to save my changes to the files directly. Even with RAW I want to adjust settings and save as jpg. It is enough for my private photos and ...
0
votes
2answers
42 views

Why doesn't my flash fire from the hot shoe trigger?

I have a Yongnuo YN-560 III and a pair of RF-603II (C3) triggers. I have a Canon Rebel T5i. I put one trigger on the hot shoe. When this trigger is in TX mode I get a blue comm light and I can fire ...
1
vote
1answer
206 views

How to manually select aperture and shutter speed but have auto ISO on a Canon 7D?

I want to be able to manually adjust aperture and shutter speed, but leave ISO being set automatically. How can I do this on my Canon 7D?
4
votes
1answer
112 views

What are the most prestigious photography awards worldwide?

When I hear about "award-winning" photographers it is always interesting to know what awards have they won. Is there a list of most prestigious international photography awards? Are there top awards ...
1
vote
1answer
86 views

Can my Nikon D70 take video?

Having an older camera (which is my Nikon D70) is there any possible way to make it take photos and videos or is it impossible, I don't mind installing anything new on to it aswell.
1
vote
1answer
80 views

D5200 darker area at top

I'm using a Nikon D5200 and when I use my flash on auto I get a dark bar across the top of the image. When I use the auto but disable the flash the image looks fine. If I turn the camera on its side ...
3
votes
2answers
72 views

How should I develop a portfolio for art school?

I am currently in high school developing a portfolio for art school. I would like some advice on how to develop a theme for a portfolio. And any advice as to how to stay consistent with the theme.
0
votes
3answers
162 views

How do I go about fixing this old photograph?

I was wondering how you would go about fixing this photograph? How would you describe what was wrong with it, over/under exposed? It's an old scanned image, i have a few in the same condition and i ...
0
votes
2answers
104 views

Why do pictures turn out dark when I shoot with my external flash?

I've tried many things: I've changed the flash's batteries and also the camera's batteries, none of them seem the problem. I'm using a Canon t3i and sunpak digiflash 3000. I've tried the internal ...
0
votes
1answer
54 views

Why won't my Olympus OM-D E-M5 turn on?

I purchased an Olympus OM-D E-M5 a couple of months ago and it was a fabulous camera until it stopped working. Now when I switch it on, the lense opens and an image appears on the screen. There is no ...
6
votes
3answers
170 views

Astrophotography, image stabilization on or off?

Should the image stabilization be on or off when shooting astrophotography on a tracking mount? On one hand i think that it might stabilize any vibration caused by the camera, shutter or whatsoever, ...
1
vote
2answers
104 views

Astrophotography, what to shoot with barndoor tracker and 200mm f2.8 lens

I have a self made, computerized barndoor tracker. The computer controls a stepper motor very precirsely. The tracking unprecisions come from building limitations and orientation precision. I do have ...
1
vote
1answer
91 views

How long does the exposure have to be for a specific astrophotography object with a given lense, iso and aperture?

how do I know how many frames I need (overall exposure) for a particular object at a given ISO setting? (200mm, f2.8, canon 6D) I will be shooting on a barndoor tracker, at a very dark place about 40 ...
0
votes
1answer
45 views

How to configure Canon EOS 550D for dumb strobe lights?

I got a pair of "no name" strobe lights with a simple hot-shoe trigger and trying to use it with EOS 550D. Although it seems to work at first glance (strobes fire when shutter is triggered) in fact ...
0
votes
1answer
43 views

Light Inconspicuous Tripod [closed]

BSD Does anyone know of any tripod brands that make light think slender inconspicuous tripod. I am basically looking for one with easy mobility that is easy to whip out and shoot on the fly. Also one ...
3
votes
2answers
235 views

Got my first vintage lens (Carl Zeiss Jena Pancolar 50mm f/1.8) - what's this lever for?

This was made by the East German incarnation of Carl Zeiss in the 70s. The plastic part to the right is the M42 to E-mount adapter. I'm wondering what the lever in the center of the first image does. ...
1
vote
2answers
143 views

Right to use a photo taken at a Russian train station

I took a cool photo whilst standing on the platform of Paveletsky station in Moscow. Its a bit like this one. Do I have the right to use my photo on the cover of a book that I'm publishing?
1
vote
0answers
50 views

How to cut medium format film for scanning and archival storing

I shoot both 6x6 and 6x7 formats. There are no problems with 6x6 - I cut it as 3,3,3,3 frame pieces to fill a 4-row sleeve and have no problem scanning them in my Nikon 9000. However, if I cut 6x7 ...
10
votes
2answers
206 views

Do web-based photofinder services for stolen cameras work?

Unfortunately I've been robbed this week, and the thief stole my Nikon DSLR + Optics. I am considering registering in Stolen camera finder or CameraTrace, which browse the metadata of web pictures. ...
-1
votes
2answers
358 views

Why is Lightroom CC not responding after changing to develop mode?

So as the title says, Lightroom CC becomes inoperable as soon as I change to develop mode. I updated the software for my graphics card, which originally was not supported with LCC. Once I saw in ...
1
vote
1answer
70 views

Was photography school worth it? [duplicate]

This question may not apply to most people on Photo.SE, but my question is directed towards those who have an undergraduate degree in photography or a closely related field: What experience as part ...
1
vote
1answer
45 views

Remote flash triggering options for Canon 6D

I've built a water droplet photography rig, and the last piece of the puzzle is finding the right flash setup. I have a Canon 6D, and I already have a Canon 320EX flash. I need at least one more ...
0
votes
1answer
43 views

Is the Canon Rebel T3/ EOS 1100D compatible with Nikon Lenses? [duplicate]

Is the Canon T3 compatible with the Sigma 18-200mm F3.5-6.3 DC OS for Nikon? I'm looking around craigslist looking for a compatible lens.
1
vote
2answers
53 views

Will a SMC Pentax-A lens work with my Pentax K → Micro Four Thirds adapter?

I am using a MFT camera and have a lens coming in soon. I have a PK -> MFT adapter. The lens is supposed to be Aperture-automatic, SMC Pentax-A 35-105mm F3.5. Now, will it work with the adapter? I ...
1
vote
2answers
171 views

How to convert a dull monochrome photograph into a sharp black and white photograph with great contrast? [closed]

I shot the following photo with Nikon D3100 + Nikkor 50mm 1.8f G. I shot this with the Monochrome option of the camera. I use Gimp for post processing. I sharpened this with the Unsharpen ...
0
votes
2answers
90 views

Pixel size at long distance

is there a formula to calculate the pixel size of a object at long distance? Here is the scenario, I have a very small object 1cm by 1cm at 200m away from my camera. The camera has a resolution of ...
1
vote
3answers
157 views

Which mount is this Sigma lens for?

I have lens that does not fit my Nikon or Canon. Can someone tell me what camera this lens is for?
0
votes
3answers
68 views

Do lens hoods need to be matched to focal length?

Is it true that not all generic lens hoods work on all lenses (provided the filter diameter matches, of course)? I read that the focal length plays a role in it - but I cannot find such readings on ...

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