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by Vian Esterhuizen

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4
votes
2answers
127 views

What caused “silver eye” instead of red eye, and what can I do about it?

I ended up taking a few flash pictures with my Nexus 5 phone with the flash. Instead of red eyes, I have robotic silver eyes. Aperture does not correct these when asked. Is there something I did to ...
2
votes
1answer
4k views

What battery types are suitable for low temperatures and high altitudes?

I do some high altitude (4-4.5k metres) trekking. At night this can lead to very low temperatures (down to -20oC). My choice of battery type for my camera is lithium ion, or rechargeable lithium ion. ...
9
votes
3answers
40k views

What causes an SD card to go corrupt?

One of my cheap SD cards goes corrupt from time to time and the camera demands it needs to be reformatted. It's frustrating, but I want to know what might be the reason that makes it go corrupt and ...
9
votes
4answers
18k views

Are 2 megapixels enough for HD resolution pictures?

HD pictures has 1920x1080 = 2073600 pixels = 2025 kilopixel = 1.98 megapixel. Does this mean that we can take HD pictures with a 2 MP camera? If not, why not?
0
votes
2answers
42 views

Auto exposure with studio lights

I was recently given a pair of older studio lights complete with softboxes and a basic hot-shoe trigger. I have zero experience with studio lights I admit. I intend to use it with my Canon EOS 550D. ...
1
vote
3answers
4k views

What can cause black corners in an image?

There are completely black corners in some of my photos. What can cause it? I have a full-frame Canon 5D Mk II and had the problem with my 24-105 Canon lens recently and have experienced it with my ...
2
votes
2answers
56 views

Can I use ILFORD ILFOTEC HC to push BW film?

The technical information pdf for Ilford Ilfotec HC states: We do not recommend push processing using reused developers. Looking through Choosing a B&W Film Developer, it says for some ...
8
votes
3answers
2k views

What is the most effective way to remove a fence in the foreground?

I enjoy visiting a good aviary to capture birds, but often they are caged. My strategy is then to move as close as possible to the fence, resulting in a blurred fence foreground and the subject in ...
1
vote
2answers
70 views

What does the edge marking 'safety film' mean?

I developed some Ilford FP4+ and on the edges it reads "Ilford FP4+ Safety Film". What does the safety film bit mean?
0
votes
0answers
6 views

How can I remove all keywords from Adobe Bridge?

I have started using bridge and in doing so reorganized my keyword list a number of times, without being aware that if all the files with that keyword aren't selected, you end up with duplicate ...
10
votes
3answers
528 views

What is the limiting factor in lens construction when it comes to f-stop values?

This widely praised Nikon 105mm macro lens has a maximum f-stop value of 2.8. I've held it in my hands, it's a big lens. Meanwhile, this 50mm Nikon lens can go up to f/1.2, despite being 25% cheaper ...
0
votes
1answer
23 views

Will CS6 run on Yosemite OS on a new MacBook Pro?

I have been running CS6 on my 4-year-old MacBook Pro with Maverick OS. I will replace my computer with a new MacBook Pro with Yosemite OS. Will CS6 run on Yosemite on that MacBook?
17
votes
3answers
14k views

How do people shoot very large moon views?

I see pictures of the moon that looks like it is very close to the earth; I am wondering whether they are real or is there a trick to show the moon that big? Here is an example: ...
0
votes
1answer
148 views

Unable to change shutter speed, ISO, or aperture on Nikon D3100 in any mode

I recently bought a Nikon D3100. But I have a problem now: I can't change shutter speed, ISO, or aperture in any mode. I am stuck at 1/100 and when I try to wheel it shows me 1/80 for a second and ...
0
votes
1answer
99 views

Technique to manually set aperture and focus for a low light scene during normally lit time of day?

I have a scenario that requires manually setting the aperture and focus on a lens attached to a machine vision camera on an outdoor scene (mirrorless camera with global shutter). I need to manually ...
-1
votes
2answers
75 views

Will more autofocus points improve hit rate for focus on the target I want?

I got a Canon 70D a couple weeks ago from Amazon. As explained here and many other places around the internet, its autofocus system doesn't work as one might think it does. The focus "point" actually ...
2
votes
0answers
14 views

How can I mount 1.25" filters on a webcam?

I have a webcam-like camera with a CMOS sensor and a C-mount type. And there are some filters used in astronomy that have a diameter of 1.25" type. There is adapters of course between those two mount ...
7
votes
4answers
3k views

What are the advantages of a lens having a fixed maximum aperture?

What are the advantages of a lens having a Fixed Maximum Aperture? Previous answers have indicated that "pros tend to want constant apertures in zoom lenses". While in general lenses with a fixed ...
12
votes
7answers
8k views

How to delete JPG files, but only if the matching RAW file exists?

My early (Canon G2) photos are all JPG, but when I got my Nikon D90 I initially shot in JPG, then switched to RAW+JPG, and now I would like to switch to RAW only. I have literally thousands of photos ...
11
votes
8answers
3k views

When buying entry level cameras, are lenses really more important than the body?

Original Question: Is there a D5100 alternative I was considering my first DSLR Nikon D3000, then saw D3100 and was fixed on it, then saw D5100 and I though yes,this is the one to go for. While ...
0
votes
0answers
15 views

Nikon D5300 Vs Nikon D3300 and additional lenses (beginner) [duplicate]

I am going to buy my first "serious" camera. The brand I have zeroed upon is Nikon. Particularly, I am interested in D5300 and D3300 with a price difference of 150 USD. I have heard that lenses matter ...
1
vote
0answers
60 views

What are the advantages/disadvantages of mirrorless over DSLR for capturing night life in cities? [closed]

I am going to buy my first 'real' camera. I mostly want to take pictures when I am travelling in various cities all across the world. I don't know how much I will grow as a photgrapher in future. ...
3
votes
3answers
522 views

Should a Nikon 18-55 lens zoom automatically?

I have purchased a Nikon D5000 camera with 18-55 from eBay. The lens focuses automatically, but should the lens also zoom automatically or is this controlled manually by the zoom ring.
0
votes
1answer
61 views

Why does the screen go black when I make the shutter speed faster? [duplicate]

I have a Canon 600D and in manual mode, if I make the shutter speed higher, then the screen turns blackish/black; but with the same settings when I open the camera's flash it works well. In the day, ...
0
votes
1answer
45 views

Nature photography [closed]

I am a photography. My gear is Nikon D3200 with kit lenses AF-S 18-55 VR, AF-S 55-200 VR and AF-S 35mm f1.4G. Which lens should I purchase first For Nature Photograhy - Tokina 12-28mm f/4 or to Nikon ...
2
votes
3answers
10k views

Why am I getting black photos when I use the Manual feature on my DSLR?

I was taking photos a few days ago, and I had it set to Manual. After about four photos, the rest started coming out black. I could see through my eyepiece clearly, and it took the photo normally, but ...
-2
votes
0answers
43 views

Nikon D5300 vs Nikon D5200 vs Sony Alpha A58 [closed]

I am looking forward to buying my first DSLR, and am stuck between these three choices. I have used Nikon D3200 and Canon 1100D for quite some time now, but those were not mine. The choices boiled ...
0
votes
0answers
38 views

Quilted/Tiled Image Sensor: How do you eliminate stripes of missing photos in huge quilted sensors?

Background: This question is largely inspired by one of the answers in: What limits the size of digital imaging sensors? So the answer mentions uber-large image sensors that are made by "quilting" or ...
13
votes
4answers
3k views

How can I track a lost DSLR?

I am aware of tracking mechanisms for laptops with a combination of hardware/software solution that help the owner to track lost machines. I was wondering if there is a similar solution for tracking ...
8
votes
3answers
5k views

Do jpgs have “layers”?

I have jpg photos with frames put on them which a friend made for me. I noticed when I open the jpgs though, that the image loads first and then the frame loads on top of it (that is, I can see the ...
55
votes
6answers
4k views

How do I get started in Astrophotography?

I have a Canon 20D. I'd love to take some photos of the moon and stars. How do I get started? I've search the web and the information is sparse and cryptic. I'd like to know what equipment is the ...
2
votes
2answers
45 views

How can I import a single photo from Mac to iPhone library?

I want to import a single image file from my computer into my iPhone library so that I can, from there, import it into the LINE app. I do not want to sync my iPhone with my computer, because I only ...
1
vote
4answers
1k views

What are the Yongnuo flash naming conventions?

I'm trying to get an idea of which Yongnuo flash will fit my requirements. I'd like to have a flash to pair with my SB-900 with TTL support for use both on and off camera (Nikon CLS-compatible). My ...
0
votes
0answers
22 views

How do I convert an AVI video file to a stacked image? [migrated]

I am using a Skyris 132c to capture image video and have an issue with Registax 6.1 with update and also with 5.0. Neither will work with the 40 second video I have captured. The 5 version doesn't ...
0
votes
1answer
100 views

Why won't my Quantaray teleconverter, which fits my EOS3, mount on my Canon 60D?

I have a Quantary teleconverter that I can use on my Canon EOS3 film camera but it will not attach to my 60D body but it attaches to all my other Canon Lenses. I don't want to force it. It seems like ...
0
votes
1answer
28 views

Why won't my Sony a350 take a picture in low light situations?

I'm trying to take a photo with my Sony a350 but it won't take pictures in low light situations. I have fiddled around with the shutter speed and the aperture but it still won't take the picture! ...
2
votes
1answer
196 views

How to programmatically determine as-shot ColorTemp from NEF (RAW) file?

When shooting RAW images in AUTO WhiteBalance mode, the camera will somehow determine what it thinks is a good WB for the picture. In Photoshop (CS6), there is no way I can find to extract the ...
0
votes
0answers
16 views

How to transfer photos and video into 2 separate folders using playMemories (sony app)?

I have got a sony rx100. I managed to create only one folder for storing photos by following the instruction in this link (http://www.dpreview.com/forums/post/55764346). However, when I transfer the ...
3
votes
2answers
2k views

Why does my camera record a .JPG image and .NEF image on my memory card? [duplicate]

When I looked my photos in my computer, two images appeared. One is a JPG image and another one is a NEF image. I'd already formatted my memory card but there's no change at all. What should I do? The ...
74
votes
5answers
2k views

What is RAW, technically?

From a technical perspective, what exactly is RAW and how does it differ from JPG or bitmap images? I'm not asking about the pros/cons versus another format, but rather what constitutes RAW format, ...
5
votes
2answers
4k views

How can I calculate focal length from a photograph?

I posted this question over on Stack Overflow, but someone suggested this site might be of more help to me. I'm doing a college project where I'm trying to calculate the focal length of a camera ...
1
vote
4answers
7k views

How do I deactivate the pop-up flash on the Nikon D7000 when using a hotshoe flash?

How do I deactivate the pop-up flash on the Nikon D7000 when using a flash unit that is mounted in the hot-shoe?
2
votes
2answers
69 views

Can I post a picture of a kitchen remodel we did for a homeowner on our website?

I have a question- I am a remodeler- we did a great custom kitchen remodel for a client- they were extremely difficult & unkind- all said and done it turned out to be the most gorgeous remodel so ...
9
votes
3answers
4k views

How to read ND filter description?

When I search on Amazon for eg. neutral density 67mm, I get long list of different filters. Some of them are marked like: ND2, ND4, ND8 etc. I'm guessing this means 2-, 4- or 8-stops filter, am I ...
0
votes
3answers
4k views

Storing camera body with lens attached or just the body alone with body cap in dry cabinet? which is better?

Storing camera body with lens attached or just the body alone with body cap in dry cabinet? which is better? which is highly recommended?
39
votes
13answers
4k views
6
votes
3answers
4k views

What is the relationship between size of object with distance?

How does the size/length of an object vary with distance? Is it a logarithmic relationship? exponential? linear? I plotted a curve of the size/length of an object for different distances from the ...
1
vote
2answers
4k views

How do I get highly detailed iris photos?

I've found the following two pictures (particularly the first) that have a very high level of detail in the iris: http://www.flickr.com/photos/stockrdb/2848444141/ ...
10
votes
4answers
4k views

How do I easily remove an almost-white background?

I want a "product shot" style photo of several small objects without any background (pure white background). Knowing the hours of work involved in properly deep-etching, but not having nice lighting ...
11
votes
3answers
5k views

How do I best take pictures against “green screen” background?

I've been asked to take head-and-shoulders portraits of some people against a "green screen" — presumably to make it easier to then paste those shots into another picture. I've never done this ...

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