Spring 2012

Spring 2012
by ani

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Exposure is the total amount of light allowed to fall on a sensor or film during the taking of a photograph. This is determined by the exposure time (shutter speed) and amount of light admitted (lens aperture). Today, sensor/film sensitivity (ISO speed) is often also considered to be part of ...

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2answers
80 views

When to use the LV formula?

EV = log2(f^2/T) LV = EV + log2(ISO/100) Question is to those that this is already clear. It is not a math question, it is a photography question about using Light Value. My puzzlement is "what ...
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1answer
129 views

Separating images from one multiple exposure image on Nikon camera

By mistake, I have images that have dual exposures superimposed in Nikon RAW format. These exposures were 2 seconds apart, so, it needs to be separated. Is there any way to separate these exposures ...
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1answer
149 views

Why would exposure settings be very different for the same scene between full-frame and APS-C (using a 10-stop ND filter)?

I own a Nikon D600 and my girlfriend owns a Nikon D7000. Recently we were out doing landscape in broad daylight with our big stoppers. We have the same 10 stop filter and we came across to something ...
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3answers
346 views

How can I achieve this 'pure white' skin effect?

Much better quality larger version here I am trying to get this 'pure white' skin effect. Is this just playing with over-exposure or is it more post-processing work? The above image is not mine. I ...
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1answer
101 views

Glass photograph

I have a photograph of I think my great grandmother over150 years old it is on glass not stuck on. She is sitting down and looks to have a false arm but I think it will be with her sitting in one ...
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3answers
118 views

Canon Film SLR 28-80 mm lens with sunfilter; what should be my aperture settings and distance

With the Canon Film SLR 28-80 mm lens with sunfilter (I think it has zero impact on focal length) what should be my aperture settings, if I have to take pictures of people in crowd and restaurant to ...
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2answers
76 views

Higher ISO or negative EV to capture action during wild life shooting at low light?

Early morning light..low contrast scene..hand held 7D-II with 300 IS II f4 lens. A big dark cat is climbing down a tree super fast. I had increased EV by 1/3 and had to jump up ISO to 5000 to get a ...
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3answers
100 views

Why does my camera give a very different reading from my lightmeter?

I'm new to digital photography. I start shooting in aperture priority mode, unless some situation require some shutter speed attention. Both ISO and SS is calculated by camera. I am looking at some ...
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2answers
101 views

I must teach someone how a dSLR works at work. Where can I find an animation for this? [closed]

I must teach someone how a dSLR works at work. So YouTube, Vimeo and, generally, videos are banned. My 'apprentice' is smart, however I feel that he needs an animation with a 'transparent' (CGI) dSLR ...
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1answer
360 views

How to make Liveview mode in Canon 450D stop simulating exposure?

On the Canon EOS 450D (Rebel XSi) camera, Liveview mode always shows the true exposure of the image. If exposure is set too dark (fast shutter and closed aperture), Liveview shows a darker image. If ...
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2answers
505 views

Is it possible to take a five minute exposure with a Canon Powershot SX 160 IS?

I have a Canon Power Shot SX 160 IS. Is it possible to take a five minute exposure with this type of camera?
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1answer
81 views

Add Exposure Time multiple times from the same image [duplicate]

According to this question, it's possible to add the add the exposure time of multiple images. so i can take 20 pictures with a exposure time 1 second and get the same result as a image with 20 ...
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2answers
456 views

How does a camera in an automatic mode choose what exposure, aperture and ISO to use? [duplicate]

For example: Does the camera detect if the scene contains fast-moving objects and if so use a shorter shutter speed? Does it detect if the entire scene is beyond the hyperfocal distance, and there's ...
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2answers
235 views

High-speed camera for Photographing Fast objects such as balls? Important features?

I am interested to shoot fast balls such as golf balls and tennis balls to see their features such as speed, spinning and start angle. I am an amateur and only familiar with photographing though my ...
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1answer
403 views

How can we calculate differences in exposure times with ND filters?

This should be rather easy for these of you who own and use 0.45 ND or 0.75 ND filters so here we go. Just for fun I'm writing Android app that calculates exposure time when certain filter is applied. ...
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2answers
2k views

Nikon Live-View shutter speed preview - a non-feature in the future? [closed]

I have a D3200. It offers a great feature: simulated preview of the three shutter parameters in Live-View (shutter speed, ISO, aperture). That means, when I change any of these parameters, Live-View ...
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1answer
126 views

Guide number and exposure [duplicate]

I am having a bit of a difficulty calculating this. Guide#= 32 feet at ISO 100 X sync speed= 1/250 Min ISO= 100 Max ISO= 800 What exposure values to expose to capture subject that's far away? What ...
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3answers
5k views

Why is exposure meter reading not changing in Manual mode?

I own a Nikon D90. I am new to exposure setting. In Manual mode, I could see the exposure meter changing towards right of zero and towards left of zero informing about under exposure and over ...
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1answer
64 views

How can I maximizing dynamic range without postprocessing?

How can I maximize the amount of detail captured in both dark and light objects in the same photo? I don't have the option of post-processing, so "traditional" HDR is not possible. If I reduce ...
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1answer
119 views

Does Av mode apply any in-camera software push-pull (Canon 6D)?

I test-shot frames in Manual VS Av mode with identical aperture/shutter speed/ISO, settings and lighting, and I noticed that some frames in Av are sometimes over or underexposed compared to those in ...
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3answers
162 views

How to create an image with star trails in the background and clear, bright foreground objects?

Take a look at the following image by Franky Chou: I'm trying to understand how it was even possible. I mean, it's clear how you do a stars' trail shot, but with a long exposure, I feel like the ...
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1answer
92 views

Even exposure for portrait photos [duplicate]

I'm using a Canon Powershot sx510hs which is an advanced point and shoot camera with 30x optical zoom. It has only one focus point at the center. Whenever I am trying to take portraits, having sky as ...
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1answer
87 views

Graininess and lack of detail [duplicate]

Hello fellow lens loving junkies! I have been struggling to get very sharp, non-grainy images. I have a Canon Rebel Eos T3i. Even images at 100 ISO are not as sharp as I would like. Not sure if it is ...
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1answer
96 views

How can I calculate settings for manual flash to reduce trial and error? [duplicate]

I have two Yongnuo 560-III flashes that I have been using for a while, In order to get good results I am having to do a lot of trial and error. Adjusting power, zoom, moving them around etc. Is there ...
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2answers
71 views

Lightroom/ACR Histogram Shape

If I open a raw file in ACR or Lightroom and move the exposure slider, why does the shape of the histogram change? If all I'm doing is changing the exposure, I would expect the shape itself to remain ...
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2answers
405 views

How to calculate camera settings for a family group portrait with a film camera and flash?

I'm shooting film 200 ASA.,, Three rows of family members in front of a large white lit xmas tree, with flash. Distance from first row approx.15ft. Where should the focus on the group be? What would ...
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1answer
337 views

Nikon Lens - Stopping down causes over exposure in Aperture Priority mode

I just got a used Nikon 300mm f/4 AF (the older, non-AF-S version), and unmounted, when set to f/4, the aperture blades are still slightly visible (you can push the aperture lever on the lens a bit to ...
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1answer
93 views

What's the best workflow for shooting stationary objects in a makeshift studio?

I have bought the following kit to shoot my portfolio which consists of mostly books and posters: Super White Background + 2 strobes 100 watts each with softboxes https://docs.google.com/...
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3answers
680 views

Dynamic range of Sony RX-100

attached you will find two photos I have taken, exposure manually. I have taken these with a Sony RX-100 and as you can see the sky is overexposed while the landscape is exposed "alright". I was ...
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1answer
123 views

How to take high key portraits [closed]

What is the best method for achieving high-key portraits. I see them all the time of e.g. baby close-ups etc. but don't have a great deal of knowledge of how to create them. They are almost always ...
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1answer
183 views

Why has my camera stopped taking pictures in low light?

I have had a Canon T1i for about 4 years now and I've noticed that it won't take pictures in low light even when I'm in manual mode. I've taken some pictures using time exposure in "bulb" and even ...
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2answers
242 views

What can I do to improve exposure on my Canon 30D? [duplicate]

All my pictures taken indoors show very low-light. I guess it should be giving more brightness when I chose f/5.6 aperture, 1/25 sec, ISO 200. And I doubt I might be doing something wrong or if its ...
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0answers
37 views

Is the Live View ISO setting only effecive for capturing a picture?

I put the Live View on tripod mode and in Live View by pressing the OK button, I can change the exposure value. But obviously in different light intensities, the EV changes automatically. I have the ...
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0answers
21 views

Efficiency of DSLR's CMOS at constant ISO [duplicate]

Does the efficiency of CMOS change if one keeps the ISO constant but changes the exposure time?
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0answers
105 views

Normalize the brightness of images with different exposure times using EXIF data

I shot a bunch of images in a hurry today, having forgotten to switch the camera to M mode. So my photos ended up having different exposure times, and now I must normalize them to make them look as if ...
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0answers
27 views

Taking photo with big contrasts and over-exposing? [duplicate]

I took this photo: The problem is that the center of the image is overexposed. Now, I was using f/5.6 as it works nice, focus is at the bench area, ISO is 200 because it was very bright, but cloudy ...
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1answer
74 views

How to shoot the sequence of adjusted exposures wanted for a ColorChecker?

I'm trying to shoot a sequence of photos needed for calibration. As instructed, I'm in manual mode, with fixed ISO 100 (camera dafault), and other values read from the lightmeter ... and now: Can you ...
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3answers
208 views

Grey cards and there understandings [duplicate]

Few months ago i Ordered for a Grey Card,they came in 3 numbers one card is Fully dark grey,second one is Light Grey,one is Like dull white,i read about Grey Cards and there uses for white Balance, to ...
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3answers
189 views

Exposure shooting youth sports during a sunny day [closed]

I would like to know how to prevent my photos from being dark during sunny day during a youth game. I am ising a nikon d90 shooting raw...and suggested settings would be appreciated.
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1answer
95 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 ...
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1answer
73 views

Photography in sunlight [duplicate]

I have read in most of the sites sayin take pics in sunlight which will enhance the look, my quest is , on evening time in outdoor while posing for a picture i shrinked my eyes due to direct sunlight, ...
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0answers
50 views

What are good settings to use for exposure bracketing? [duplicate]

I take exposure-bracketed photos on the Sony NEX-5R and exposure fuse them in Photomatix. I've found that I've had to use exposure bracketing for low-light photos, to capture the shadows without ...
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0answers
1k views

Recommendations for use of exposure modes with Nikon D7100 DSLR

I'm looking for advice on handling tricky exposure situations, such as backlit portraits, in terms of picking between: 1. Manual exposure 2. Shutter/Aperture/Auto exposure, and using the AE/AF lock ...
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0answers
62 views

Why does my flash have lower power in automatic than in manual? [duplicate]

I have a Sony HVL-43AM flash. I've found that when I'm in automatic mode, when I dial the flash exposure compensation to -2EV I was able to get a much weaker flash than if I went manual with the flash ...
0
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1answer
93 views

How is the exposure of this histogram? [duplicate]

Is exposure correct for this luminance histogram? What does this say about the dynamic range of the scene? The link is here below. It's the graph with dots. http://tinypic.com/r/b85mkj/6
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0answers
60 views

Different sources of noise and ways to avoid/correct those [duplicate]

Possible Duplicate: What types of noise can be present in digital photographs? I've few questions related to noise found in digital images. There are topics on this forum on underexposure ...
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4answers
103 views

Dark image under shade and sunlight

I am beginner and trying to learn photography. I am having a hard time clicking pictures outside. Some time they come out really well when I am in full sun and light is falling on my subject but in ...
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2answers
900 views

Why are my images always underexposed in Tv/M mode?

With the 18-55 mm kit lens on my Canon 1100D in Tv or M mode, when the shutter speed is more than 1/200th it always always produces dark images. The max f-stop this lens can go to is f/3.5. SMALL F-...
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votes
3answers
98 views

What are the parameters for evaluating photos [duplicate]

I understand that different people enjoy same photo at different levels. However in general what are the most important parameters that we use to evaluate a photo’s quality? Some of them that I can ...