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0
votes
0answers
3 views

How to turn an external flash off and reactive the incorporated one (Canon 600D)?

After using an external flash, I took it off and, when trying to use the built-in flash incorporated to the camera, it just didn't pop up. In the menu, it tells me that the external flash is mounted, ...
0
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0answers
4 views

Canon 1000D shutter stuck. How to fix?

As you can see on the picture the shutter is stuck. What now? It is a pricey service job or this happens a lot and there is a know fix out there that I do not find on Google? I already tried that ...
0
votes
1answer
24 views

Unusual ideas for a 10 yr old taking photos on theme of 'Cold'?

Can anyone help please?! She has a Nikon D60.
0
votes
1answer
22 views

What type of lens mount is this Som Berthiot?

I bought this som berthiot 20mm f1.9 lens assuming it was a c-mount but it is much smaller with an elongated screw mount. Can't figure out what type of mount this could be. Here it is compared to ...
0
votes
2answers
22 views

Brighten a subject without Flash

I'm new to photography and often face problems with subject with a bright background. For example: A worker on a 2nd floor building with bright sky as background and picture captured from ...
0
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0answers
28 views

Weird sticky liquid on old tripod (+10 years)

I found my Dad's old tripod in the garage. It is more than 10 years old and it's still in perfect condition. The problem is that there is a weird sticky liquid all over the top of the tripod near the ...
0
votes
1answer
23 views

Color schemes and perception: If L*-linearity does not imply perceptual intensity linearity, then what is the best metric of perceptual intensity?

This question was in part motivated by this MathematicaSE question and Matteo Niccoli's geophysics blog post on color schemes. The underlying concept of Niccoli's perceptually-balanced color schemes ...
0
votes
0answers
19 views

Canon rebel t5 image on LCD

When I push the LCD view display button, if I take pics from the screen--not looking through the viewfinder--it fails to show an image to take the pic. If I switch settings to video it does display ...
0
votes
0answers
14 views

Correction of Scanned Documents [on hold]

I have a project that will automatically perform correction of scanned documents, especially insurance card. What types of errors can occur when scanning ? What artifacts may appear on the cards ? ...
2
votes
0answers
16 views

Wide angle macro solution for Nikon DX

I am looking for wide angle macro solutions for Nikon APS-C cameras to create images similar to these. By wide angle I mean 20 mm (30 mm equiv.) or wider and by macro I'm hoping to get close to 0.5× ...
0
votes
1answer
18 views

Wireless flash trigger for home studio

I'm an amateur photographer looking for a wireless flash trigger. My gear is Canon 70D with Speedlight 380ex. My question is what should I look for in a flash trigger? How important is the trigger ...
1
vote
0answers
12 views

What is the meaning of the distance parameter for line control points?

After fine-tuning control points in Hugin the distance parameter indicates the correlation of two control points in different images and is a value between 0 and 1. However, line control points ...
1
vote
0answers
13 views

How to use Hugin straight line control points?

I'm in the process of stitching a very badly shot panorama so I'm placing control points and lines by hand in Hugin. In the documentation I found out that you can indicate straight features, using ...
2
votes
0answers
34 views

What are *rails* for?

I've seen rail systems for sale, and a remark from someone wanting to get a rail system. What is the purpose(s) of that? Is a focusing rail for macro a different usage of the term (same as a focusing ...
4
votes
1answer
30 views

Where to announce or release 'opensource' photos

There are many questions on where to release photos for sale or copyright information. I have taken some photos that are not world class, but I think useful for some people. I have been working on a ...
0
votes
1answer
79 views

Does the lens I just bought have a fungus?

I bought a used Sigma lens on ebay for my back up camera and it was said to be in "mint" condition. I got it today and look it out of the box to look at it and I was horrified to see that the front ...
0
votes
1answer
46 views

Thinking of buying a canon 550D - few questions [duplicate]

I'm thinking of buying a canon 550D second hand. I have a few quesitons: 1) If I buy lenses for this camera, will they work with ALL other canon DSLRs? 2) What should I look out for when buying ...
0
votes
1answer
41 views

How can I get good motion shots (long exposure) of the sea in daylight?

I have tried using my Nikon D5200 in aperture mode with a standard 50mm F1.8 lens at F16 with 2 filters, a Hoya circular Polariser + a ND4. I just can't get the shutter speed slow enough in fairly ...
0
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0answers
25 views

Old Yashica Flash with Nikon D3200

I have a Nikon D3200 and an old Yahica Branded Flash that came with an old Zenit ET. I googled for the instructions for using old flash with new cameras and found out that the excessive voltages could ...
0
votes
2answers
42 views

Can I calculate the diameter of a lens from its focal length? [on hold]

With a 50mm focal length lens, is there a way to mathematically calculate calculate the diameter?
3
votes
2answers
83 views

Can I use Canon lenses on a Nikon dSLR?

I have Canon lenses and would like to purchase an adapter to use them on the D3200? Is there one available? If so name and model would be appericated. I understand that I will have to shoot on manual ...
4
votes
3answers
192 views

Where is a camera's preview image stored, when shooting in RAW?

When you take pictures in RAW, the camera stores a preview image (possibly jpeg) that it shown on the screen using white balance and other adjustments set in the camera. Where is this information ...
1
vote
1answer
32 views

Off-camera flash bracket - flash position

Why do almost every flash bracket users prefer an "above camera" flash position? I am a studio/softbox guy and usually don't use bare flashes. Recently I tried to use flashes on top and this looks ...
1
vote
0answers
48 views

Timelapse video, pictures taken over a year. Sky flashing

I have taken pictures for a year now to show the different weather and the different seasons, the problem is that, When I tried to put all the pictures together for a video, the result is very ...
0
votes
1answer
26 views

How do I import an iPhoto library into Lightroom, keeping adjustments intact?

I’m using Lightroom 5.7 on OS X. Last night I imported my iPhoto library using Lightroom’s “File > Plug-in Extras > Import from iPhoto Library…” command. The photos all seem to have been imported, but ...
3
votes
0answers
49 views

Is there a standard vocabulary for posing?

I've been looking for a definitive catalog of named poses. Catalogs consisting mainly of unlabeled photos are easy to come by. "1,001 Poses for the Professional Photographer," kind of thing. This ...
3
votes
2answers
73 views

Nikkor 70-200 2.8 VRII - Does Autofocus <5m really work?

some days ago I daring duck had approached while I was taking photos of her and her friends in a pond. I was testing my new 70-200 2.8 VRII and I was a bit worried about the autofocus while working ...
0
votes
1answer
68 views

How safe is it to photograph sunset or sunrise? [duplicate]

I took the following photographs of sunset at beach. I know that photographing sun could damage the camera or even eyes, but the intensity of the sun light at the time I captured it was so weak that I ...
0
votes
1answer
96 views

How to shoot a 220 yard photo with an 18-135mm lens

I recently bought a Canon T4i with the 18-135mm lens. I am interested in shooting some shots of a pair of eagles that are 200 yards behind my house. I am unable to zoom in clearly to make them fill ...
0
votes
1answer
89 views

Will my photo look good as a canvas?

I am planning on printing this photo as a cavas, but i'm worried that the photo does not have enough contrast to look good when printed on canvas. Any coments on if you think it will suit canvas or ...
4
votes
1answer
58 views

Calculate angle/field of view from 2D image

I want to calculate the angle of view (or field of view) from a photograph, without knowing anything about the camera (or lens). Please have a look at this example. It is assumed the angle between ...
2
votes
1answer
115 views

Will a charger for Canon 60D batteries work on 40D batteries?

I know that the batteries for 60D and 40D are not the same, but is the charger compatible?
2
votes
2answers
70 views

applying random instagram type filters to a bunch of photos

I need to apply random instagram-style filters to 100 photos. It doesn't matter what filters are used, I don't need to look at each photo. It's for a christmas present photo board. Any suggestions of ...
1
vote
0answers
23 views

How much recording time at 1080p30 on a 32GB card on a GoPro Hero (1)? [migrated]

Is there a generic data recording rate for the different capture options on GoPro Heroes? I'm trying to determine what size of SD card I should buy for my GoPro and I'd like to get an approximation. ...
0
votes
1answer
90 views

Photography in public places: Is it allowed or needs permission [duplicate]

So for example in a mall, Can I take pictures of people without their permission? Does that depend on wether they notice I take pictures or not? Also in Cafes and streets...all public places, I am not ...
8
votes
1answer
71 views

Why does L*=0 not correspond to black in the L*a*b* color space?

According to two sources I found, in the CIELAB LAB colorspace a value of L*=0 corresponds to black. Quoting Wikipedia: The three coordinates of CIELAB represent the lightness of the color (L* = 0 ...
0
votes
4answers
153 views

How do I take a “projector output” photo, showing the beam from my car's headlights?

Auto enthusiasts have a thing called a "Projector Output" photo, and its samples are something like this: mostly lights of the cars on a wall at night: And here is a sample shot I did: At full ...
0
votes
2answers
49 views

How to adjust colours displayed on MacBook Pro?

I'm trying to print photos from Aperture on my MacBook Pro (Retina, Mid 2012) via commercial printers. 4 different printers have consistently printed my photos looking more green than they look on ...
0
votes
4answers
101 views

What is the photography term for blurred / dragged lights?

What is the photography term for blurred / dragged lights? Hare are two quick examples from my phone: Would this be considered bokeh, or does a term even exist for this?
0
votes
2answers
215 views

So my iPhone 6 camera lens is as wide as my full frame 35mm DSLR lens?

I am trying to understand what is the deal with "full-frame" and what difference it makes, so did a silly test: I sat at my bed and aligned the iPhone 6 camera with the door of the room and took a ...
2
votes
0answers
108 views

Half of the picture is dark

When I take a picture with my Canon Rebel T3, half of the picture is dark. What is wrong. Where would be a good place to start troubleshooting?
-4
votes
1answer
114 views

Why do digital cameras not have an iso rating? [duplicate]

With conventional cameras your camera had a maximum shutter speed ( typically 1600 ), and the film you used had an ISO speed rating at which it was meant to be able to get a proper exposure under ...
0
votes
2answers
44 views

How can I print a 4x6 image to 4x6 photo paper with a 1/4" border?

I have a very simple task that I can't find a good solution for. I need to print a 4x6 photo image at exactly 3.5" x 5.5" with a 1/4" symmetrical border, with no cropping of the image whatsoever. From ...
0
votes
1answer
35 views

How can I use a manual-focus Minolta MC Rokkor-PF 55mm SLR lens on a four-thirds system?

I have few questions. I'm using a four-thirds system (an Olympus E-410) If I use a Minolta MC Rokkor-PF 55mm f/1.7 prime lens: Can I use this lens with a Minolta MD/MC adapter? Will I lose auto ...
36
votes
8answers
8k views

Do professionals really never use a 24-70 lens?

I was reading lens reviews on the Rockwell site — mostly because it came up as first result in Google search — and he was saying professionals don't need and don't use mid-range zoom lenses like 24-70 ...
1
vote
0answers
17 views

Does the Nikon EH-5a AC Adapter also charge the battery

On "older" Nikons like the D50, D90... that have the DC IN port, when an EH-5a AC Adapter is connected, does it JUST power the camera, or does it also charge the battery? I haven't been able to find ...
2
votes
1answer
56 views

Can I charge the battery inside a Nikon D90 through the camera's USB port?

I have to take some pictures, and brought my camera along. But the battery is empty, and it turns I have neither a second battery nor a charger. I have a USB cable and access to a computer. If I ...
3
votes
0answers
72 views

Horizontal artifacts in Lightroom after import

I have some old photos on the SD card in my Sony A57. After importing into Lightroom, there are horizontal artifacts on most of the imported photos. This is a screen grab of Lightroom displaying one ...
1
vote
0answers
32 views

Lightroom 5: how to batch adjust white balance

I own Lightroom 5 and I've been running a quite stable workflow for several years, including calibration of the monitor and the printer. In the past I printed my photos on my own and I was pleased ...
0
votes
1answer
39 views

What are the possible reasons my Pentax K-r malfunctions when using flash?

I have a Pentax K-r. It works fine in general. But, when I try to use flash, it doesn't take pictures anymore. The shutter will not fire. What can be the possible causes? Is there a hope to repair ...

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