Sunset in Kruger

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-2
votes
1answer
717 views

Manual focus in Nikon Coolpix P7100

Is it possible to focus manually with Nikon Coolpix P7100? I put my camera on a tripod and tried to make photos of full moon this night, however the camera is unable to find focus on the Moon and all ...
2
votes
2answers
224 views

Looking for a camera bag to fit our non-standard tripod needs

I am not sure whether it is appropriate to ask for product recommendations on this site, but I've been struggling with finding a proper camera bag for so long that I hope I can find help here. We ...
6
votes
2answers
2k views

Why can't my camera autofocus in low light with a small aperture?

My question is not about "how to focus in the low light" or "how to focus a camera". The question is why the camera is unable to auto-focus in low light with high f numbers? In these conditions, I ...
8
votes
1answer
5k views

Night Sky Time Lapse Photography

This is an amazing video of night sky time lapse, which was shot with the following equipment: Canon 60D and T2i Tokina 11-16 ,Sigma 20mm F1.8, Tamron 17-50 According to Wikipedia , South Dakota ...
1
vote
0answers
56 views

How to protect my gear after moving to a humid area? [duplicate]

Possible Duplicate: What precautions should I take when taking a camera into humid conditions? I recently moved from a desert to a more humid area. What kinds of things to I need to know to ...
4
votes
2answers
671 views

Why would my Hoya ND8 Pro 1 decrease the white balance dramatically?

I've just bought the Hoya ND8 Pro filter (+3 stops). After some tests, i've just notice that the results are very different from a single shot. After some tests, here is my conclusions : The ND ...
2
votes
2answers
780 views

Can ultra-high ISO ever yield good results? [duplicate]

Possible Duplicate: Is high ISO useful for photography? My camera can apparently extend to really high ISO's, however I see serious noise over 2,000 ISO at any shutter/apeture combination. ...
4
votes
1answer
406 views

Understanding Hue, and is there something else I should be using?

I am trying to isolate objects of a certain color in an image. Looking at this image, you can see that I have extracted the hue channel, and have filtered these values so that the closer a pixel's hue ...
3
votes
1answer
210 views

How can I convert geotagged location to a collection of descriptive tags?

If I have a photo which has a geotagged location, is there a way of automatically converting this location to a collection or hierarchy of descriptive tags? For example, a GPS location near the ...
5
votes
3answers
535 views

Does the imaging circle size change when a lens zooms?

When a zoom lens is designed for a cropped (APS-C) imaging circle, does the imaging circle necessarily stay that small throughout the zoom range? It is easily understandable that a prime lens ...
2
votes
1answer
339 views

How to understand the definition of dynamic range?

I have the following formula: DR=(1.4L_Sat G_i)/N_D where DR is the dynamic range; L_sat is the luminance at the “margin level”,70.1% of the maximum recordable (saturation)luminance(yes,L_sat is ...
4
votes
2answers
928 views

What is this effect called and how can I post process my photos to get this effect?

I came across this image of an artist on a website. I was wondering what this type of effect on images was called and how I can post process my photos get this effect?
10
votes
4answers
585 views

Tips on getting group shots for family

My grandfather is turning 80 this year in September. The most important thing to him is his family. Because of this, my entire family is getting together to celebrate. Since the family is spread out ...
9
votes
2answers
812 views

Why do my photos look like they're painted?

I'm not an expert, but all the photos I take look like they've been painted. It doesn't look like normal blur. I'm using a FinePix S2500HD and the following photo was taken at 1/2000 exposure. I ...
9
votes
2answers
1k views

how to improve body scape shots?

This is the best of a series of shots taken of an athlete model. The image does no justice to the model because it lacks the peaks and valleys the model worked hard to get. there was a clear 6pack on ...
2
votes
3answers
276 views

What's the best way to get a photo from Lightroom to another PC for printing?

All my photos are managed in Lightroom 4.4 running under Windows 7 64-bits which has a Print module. Only, my computer with Lightroom does not have a printer anymore and I want to print this on ...
0
votes
0answers
67 views

Canon 7D vs. Nikon D7000 for portrait photography [duplicate]

Possible Duplicate: Which DSLR brand should I pick as a beginning photographer? I'm a newbie photographer. I plan on buying a DSLR. I'm torn between Canon 7D and Nikon D7000. Which one ...
1
vote
2answers
268 views

some criteria when a filter looks good

I'm a developer who wants to figure out when a filter would look good applied to a given image. For example, I have sepia, solarisation and pencil filters. Okay, the perception will be very ...
4
votes
3answers
726 views

How to do selective-color in Photoshop?

How to make the single color in a photography to be color and other parts changed to B&W?. Don't know exactly the name of the effect, to be more clear in the following photo I want the green part ...
6
votes
6answers
325 views

What would be the right approach to take pictures of a long counter?

I am trying to take a picture of a long counter in a super market. It is about 15 yards long. I inched along (at about a distance of 3 yards) and took straight on 30-35 pictures with my 16-35mm at ...
3
votes
2answers
768 views

All my photos were blurry

I recently did a shoot of a baby and my 6 year old son, and I got some fantastic shots that were super sharp. I then did another shoot of a 6 year old and toddler and every single photo was slightly ...
3
votes
1answer
213 views

What are the difference in multi coatings of old lens like m42 lens and modern lens like canon EF-S?

I have some old m42 prime lens like Pentacon Multi-Coated f/2.8 135mm, and modern lens Canon EF-S 18-55 mm and Sigma 70-300 mm. How much is the difference in the multi-coatings of old and modern ...
5
votes
1answer
188 views

Geotagging vs. Keywording

I used to keyword all my photos with the "Where?" keywords so that I easily could find photos from a certain location. But with the arrival of Lightroom 4 geotagging and reverse geocoding has become a ...
2
votes
1answer
650 views

Powering a Nikon SB-28 or Cobra flash with an external (not portable) power supply for studio use.

I often have to use my cobra flash indoor, as a studio flash, but I always have batteries problems : not enough charged batteries, no new batteries for backup, battery charge too low after some ...
1
vote
3answers
2k views

How to mount a 58mm lens on Nikon D80?

I have a Nikon D80 50mm camera with a 52mm Haze filter. I would like to attach some 58mm lenses that I have but not sure which adapters I need. The 58mm lenses have male threads that would attach to ...
5
votes
1answer
285 views

Why would a photographer do focus stacking?

Recently, I come across the term called Focus Stacking where you combine different pictures with different focus points. My question is, why do the focus stacking? Are there any benefits from the ...
1
vote
1answer
1k views

Best zoom walk around lens for Canon 40D

I am about to take a trip of a lifetime to the Galapagos. I recently tried the L series 70-200 cannon but it is so heavy I hate it. I would like to find a zoom much lighter that give quality photos ...
5
votes
2answers
3k views

Digital Camera Screen Is All White - Pictures Taken Are Also All White

I have a Cannon Powershot SX20 - it was working fine one day and then the next the LCD screen and image displayed in the view finder were pure white. I can navigate the menus without any trouble and ...
5
votes
4answers
3k views

What should I look for in an infrared filter?

I'm looking to get myself an infrared filter to put in front of my lens. The cheaper ones all have nm counts (like 720nm, 950nm, 1000nm, and the way I understand this, the thicker, the better), but ...
16
votes
4answers
923 views

Why do people in the stands during events use flash?

I was watching the Olympics, and one thing I noticed was that flashes are going off in the spectators' stands. Why are people using flash? Is it because they are using automatic mode, or point and ...
-1
votes
1answer
160 views

Best Digital Scanning techniques - help

I want to scan a paper shown below. Actually I need the photo of the jets taking off, I dont need the entire newspaper. This is what I have - I have to do color scanning, I have a HP scanner which ...
1
vote
2answers
194 views

Canon EF vs Canon EF-S lens

I was wondering: Other than the fact that EF-S lenses are targeted to cropped bodies, and can not be used on full frames. (Supposedly if there was L series for the EF-S) Would the EF lenses be ...
8
votes
2answers
2k views

What is DRI? And how does it differ from HDR?

I recently came across the term DRI meaning Dynamic Range Increase. What exactly is it and how does it differ from HDR or High Dynamic Range (or is it the same thing just different terminology?
13
votes
6answers
5k views

How do I set the focus in long exposure night sky shots?

I want to catch a good long exposure (5 - 15 seconds) shot of the International Space Station in the night sky as it passes over my city. Setting the ISO higher (say, to 100) and the exposure time is ...
1
vote
2answers
351 views

How to power and mount flashes?

I just purchased a few Yongnuo YN-560 II flashes for use with a light tent (for macro photos) and as this will be my first time using external flashes I'm not quite sure how to power or mount them. ...
1
vote
1answer
677 views

False colour effect in lightroom

I'm trying to do a false colour effect on my IR foto's, however I can figure out how to do a false colour by swapping Red and Blue channels. What do I have to do to get a false colour effect in ...
0
votes
2answers
487 views

Interesting locations to shoot in the UK Midlands

Its looking like the weather is going to be fairly decent this weekend - so i want to get out and do a bit of landscape photography. I live near Derby in the UK, and am willing to travel about 1.5 ...
0
votes
1answer
146 views

How to take care of a new lens?

I'm planning on purchasing a new lens for my camera for macro photography, specifically this one: Tamron AF 90mm f/2.8 I've heard that it is a good idea to put a "UV filter" on front on the lens. Is ...
1
vote
0answers
179 views

How to put my images onto my Samsung 3D TV [closed]

I have stereo images (jpeg/tiff) that I would like to display on my Samsung 3D TV. Can you tell me how to convert it?
0
votes
1answer
71 views

I too have a time-lapse problem . . . [duplicate]

Possible Duplicate: Intervalometer for Nikon D3000 I am an artist | Serigrapher, I am putting together a media production where one sees a serigraph created from inception to completion. I ...
6
votes
2answers
2k views

Pentax P-TTL: Why and when does underexposure occur and what can I do?

Pentax's P-TTL flash metering system tends to be unreliable and may underexpose at times. When and why does the system underexpose and what can I do? I want to know the situations that cause flash ...
4
votes
0answers
162 views

Portable Storage Device while traveling [duplicate]

Possible Duplicate: How can I backup my RAW photos while travelling without Internet access? I need storage device which is able to read CF cards and make a backup of my photos while ...
1
vote
3answers
204 views

What are IS modes and what are their purposes?

After reading the answer by Bill to this question became curious about IS modes. So, What is basically IS mode? Does all lens comes with various IS modes? And what are various situations to use these ...
7
votes
2answers
295 views

At what point does “out of focus” become Bokeh?

As with the distinction between a big boat and a small ship, at what point can an out of focus background be considered "Bokeh"? Is it the point where the subject in the background (or foreground ...
2
votes
2answers
168 views

How to protect photographs on camera from being viewed/copied?

I need to photograph some sensitive items, I want to see the picture on camera to check it was a good photo and then secure it somehow so it cannot be viewed again in the camera or other means unless ...
4
votes
2answers
464 views

What does the term “saturation luminance” mean in the definition of dynamic range?

The concept behind the dynamic range definition given by ISO 15739 is based on the ratio of the maximum luminance that receives a unique coded representation (the "saturation" luminance) to the lowest ...
4
votes
2answers
839 views

How can I ensure my gray card is color-accurate?

I recently bought a gray card set (Zeikos ZE-DGC Digital Grey Card Set with Lanyard from Amazon) and although customers had no complaints about it, I belatedly became worried because the ...
5
votes
4answers
616 views

How was this blurry background, sharp motorbike effect achieved?

In this photo nominated as Canon Australia Photo of the Week, the background seems to blur while the rider is sharp. Wouldn't this normally be the other way? How was this done?
3
votes
1answer
75 views

Need advice on purchasing flashes for use with a light tent

I am looking to purchase three flashes for use with a light tent and am unsure of which I should purchase. I found the following on Amazon, both of which look really good and have great reviews, but ...
-1
votes
1answer
325 views

Head on character reference photo is slightly turned, how can I straighten it?

I'm using images from 3d.sk for character modeling and the one I'm using has his head turned slightly to the side. I tried lens correction but didn't really know what I was doing. Is there a way I can ...

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