All Questions
-3
votes
0answers
25 views
Analysing shape of objects using image processing MATLAB? [closed]
Hey guys ,,
I m working on image processing using matlab. Until now,I am able to draw boundaries around the objects present in the image. Further, I wanted to analyse the shape of those ...
4
votes
3answers
306 views
Why are there no digital cameras with ultra-bright integrated lenses, like f1.0, f1.2 or even f1.4?
One would think that with smaller sensors vs. film, it would be much cheaper to build an ultra bright lens. It's easy to find superzooms, 20X or 35X, but I have not been able to find a camera with a ...
0
votes
1answer
57 views
How does a fast moving satellite or a probe take those clear pictures of space objects like asteroids, Jupiter, etc?
Doesn't the picture get blurry when objects move?
3
votes
1answer
58 views
Will cleaning up the reflect mirror under strong sunlight damage the sensor?
I was cleaning up the reflection mirror under the strong sunlight in an afternoon, after that I realized that could potentially damage my sensor, since I found the mirror is somewhat semi-translucent, ...
0
votes
1answer
58 views
Looking for a new point and shoot camera! [closed]
I've been torn in a struggle recently, as I've been looking for a new long lens point and shoot camera. I'm coming from an old Samsung HZ15W which I bought brand new back in 2009/2010ish and ...
1
vote
1answer
40 views
What are the optimal settings for scanning photos?
I would like digitalize all my photos and I bought the Canon CanoScan 9000F. I have no problem of space and hence want to scan the photos with the highest possible quality.
For a printed photo, is ...
0
votes
0answers
48 views
Where can I find a place to sell my digital photography without creating my own website? [duplicate]
Where is a website where I sell downloads of my digital photos without creating my own website?
I know about several market places but they charge around 30% which I consider too high.
1
vote
1answer
63 views
Do the differences in DIGIC engine affect RAW files in EOS 600d and EOS 650D?
EOS 600D use DIGIC 4 while EOS 650D use DIGIC 5. Does this produce different raw file? That is, is data collected from the sensor processed by the DIGIC X before saving?
0
votes
4answers
94 views
How do I shoot in tethered mode using own software to control the camera?
Is it possible to capture image from computer with Canon EOS camera and save it to computer? Can the EOS utility used for this?
I want to use my own software (written in Java) to control the camera ...
1
vote
3answers
166 views
What does infinity focus mean and when should I use it?
All my lens have focus ring where at the end there's an infinity symbol. What does that mean? If I'm taking landscape shot and what everything from near to far to be in focus, do I use infinity? Or am ...
1
vote
2answers
90 views
How do I choose among the following lens of 55-250 IS, 70-300 IS and VS 75-300?
Sorry by this specific question, but I'm pretty crazy here looking for a difference.
I've got to buy a lens tomorrow (I leave my country in 2 days)
I could see the difference between 55-250 and ...
1
vote
1answer
109 views
How do I achieve deep blue light night during the day effect?
I'm trying to learning about ND, I want to know if this picture was taken with a ND, or what kind of filter?
The effect I'm looking for is the deep blue and the "night" aspect. I'm wonder also how ...
0
votes
1answer
32 views
Calibrating monitor (CRT) to match third vendor printer
I look for a long while an answer to this question here and on google, but there are too many answer for everything but not an answer for my specific problem.
I've a work to sell and I need calibrate ...
1
vote
3answers
76 views
What is the “crop factor?” [duplicate]
I need some help understanding crop factor. I do get that the actual focal length doesn't change, but as far as field of view and how the image turns out is where I'm getting stuck. Anything that I've ...
3
votes
3answers
127 views
What are the pros and cons of Canon 5D III / 6D HDR Mode Vs HDR using a computer + HDR software?
How well does the Canon 5D III / 6D HDR mode rate against other HDR modes? i.e. using a computer + HDR software?
9
votes
2answers
201 views
How do I 'break' a film camera in order to get double exposures?
Film cameras typically refuse to double expose on the same frame of film. Let's take the Olympus trip 35 as the example. They're cheap as chips and don't expose unless you wind on the film. What part ...
1
vote
2answers
41 views
Second Lens: 35mm for Nikon D3100 - considerations for making the purchase [closed]
I'm currently considering buying the Nikon 35mm f/1.8G AF-S DX Lens as a second lens for my Nikon D3100. A lot of people suggest that I go with a telephoto zoom lens as my second, but I disagree ...
0
votes
1answer
100 views
What lens is better? [duplicate]
Which of the following lenses is better (note: I know very little about cameras):
Nikon 70-300mm f/4-5.6G AF Nikkor SLR Camera Lens
or
Sigma 70-300mm f/4-5.6 SLD DG Macro Lens
Are these lenses ...
-4
votes
1answer
54 views
Sunrise and Sunset Time Lapse Setting [closed]
I'd like to do time lapse for sunrise and sunset with the sun inside the frame as well. My gear is: Tokina 11-16mm f/2.8 AT-X 116 Pro DX , Canon 7D and a tripod + intervalometer.
What is a good ...
4
votes
2answers
83 views
Does the diameter of openings on photographic lighting grids affect brightness?
I was kind of thinking about different grid options considering the depth vs diameter of individual openings and get to a interesting point (at least for me :-) ). Let's consider a very simple home ...
3
votes
1answer
109 views
Do crop sensors on SLRs changes the depth and flatness of the objects as well? (in comparison to same focal length on full frame sensors)
1- I know different focal lengths change the depth and flatness of an objects in the picture. For examples longer focal lengths make objects appear flatter so they will be appropriate for portraits. ...
2
votes
4answers
120 views
How to take a bulb mode shot of a road in day light? [duplicate]
I need to take the photo of the trailing vehicles on road at day time. I tried a shot in bulb mode at 100 ISO and f/22 of a road in daytime. But that photo is too bight(link below). How can i get the ...
4
votes
1answer
72 views
What is the best way to get good quality digital pictures from negatives?
What is the best way to get good quality digital pictures from negatives? I mean, I have a lot of negatives with pictures of my childhood that I really want to recover, but I'm not sure what process ...
2
votes
3answers
140 views
Is there a way to use Canon 18-200 EF-s lens on Canon 6D full frame body?
I just purchased Canon 6D (Full frame camera) and I hate to lose the usage of my simple 18-200 EF-S lens.
Any idea if there is a technology that allows me to use the lens on the 5d body?
-1
votes
3answers
53 views
Standard zoom lens recommendation [closed]
Am planning to buy a zoom lens for my upcomming trip.I have Canon650D and Tokina 11-16 lens with me .My clicks mainly involve landscape, architecture.
I want to know out of the below lens which I one ...
3
votes
4answers
86 views
Is there camera technology that detects if an object is still?
Are there any cameras with built-in technology to detect that the main subject is still and then take the picture?
Suppose I have three kids in focus, in close range (assume small room) and I would ...
1
vote
1answer
46 views
How to fix a zoom lens that is sticky at a particular focal length?
I have the Canon 18-55mm lens. When I zoom out from 55mm to 18mm, the lens works fine until 22mm, where it seems to be stuck and you must then use a bit more force. I saw in many sites that this is ...
1
vote
2answers
109 views
What might be causing my AF system to misfocus?
I have a Canon Rebel T1i with the default Canon lens.
When I shoot with it, I use Auto Focus and get the red dot indicators in the viewfinder as expected.
But even though it looks like the camera is ...
0
votes
3answers
100 views
What are the effects/filters being used in these pictures?
What are the special effects and filters that applies in these pictures:
http://fbcdn-sphotos-d-a.akamaihd.net/hphotos-ak-ash3/933920_650214808328552_285093563_n.jpg
...
21
votes
3answers
519 views
How do you achieve sharp bokeh circles?
There's an effect I'm looking for and I was wondering if I could get it with just the camera or will I need to open up photoshop to achieve something like it. I'm trying to get shark bokeh circles ...
3
votes
4answers
251 views
How to take a picture with subject in focus but with a circular light-trace effect around it?
How to keep the Girls sharp combined with the lighttrace effect?
Thank you very much!
-5
votes
1answer
60 views
Type of lens with Nikon D5200 [closed]
What should I buy?
Nikon D5200 with 18-55 mm VR kit lens or 18-105 mm VR kit lens.
0
votes
3answers
148 views
How do I choose a lens that does portraits, star photography and landscapes?
I'm wondering if you can help me to choose between Canon EF 28mm f/1.8 USM Wide Angle (without IS) and the Canon EF 24mm f/2.8 IS USM Wide Angle Lens for portraits, landscape and star photography.
I ...
7
votes
3answers
276 views
Why does a bigger sensor have better dynamic range?
I already understand all the theory behind how a bigger sensor leads to better control of depth of field, and lower noise. But I've yet to find a place that can explain why a bigger sensor gives you a ...
-5
votes
3answers
86 views
What must I buy to take amazing product photos?
I'm looking to do some very high quality professional looking shots for my collection of various items. They are not big items, imagine camera collection or lens collection etc. What must I buy to be ...
6
votes
1answer
117 views
What is Power Focus on a Canon lens?
A few of the most recent Canon telephoto lenses a feature called "Power Focus" or PF. What is the purpose of the setting and does it benefit photography at all?
I have found the following lenses ...
0
votes
2answers
168 views
Is it the lens or is it the camera producing a black blob on every photo?
Is it the lens or is it the camera producing a black blob on every photo? How can I tell which is at fault? It is a used Nikon camera kit I have just purchased and there is only one lens so I can't do ...
1
vote
0answers
32 views
Optimal settings to capture firework at night using Nikon D3200 with 18mm - 105mm Zoom Lens? [duplicate]
I tried take photos of firework using my Nikon D3200 with 18mm - 105mm Zoom Lens in Aperture Mode. But I cannot get a good focus since if happens in sky at different heights. This made most of my shot ...
1
vote
2answers
60 views
What is the minimum shutter speed for handheld? [duplicate]
I've heard different rule of thumbs for shutter speed. Some will say that it should be no slower than 1/60. Some will say that it should be 1/Focal length. Yet some others will say that to be ...
2
votes
4answers
123 views
Noob photographer, seeking help for day-to-day lens
I have just started taking interest in photography and after reading through couple of blogs I decided to purchase Cannon T2i as a beginner camera. It came with 2 lenses
18-55 (I don't remember rest ...
0
votes
0answers
26 views
Why does photoshop import every third frame of a gif? [migrated]
I have a 90 frame gif and if I file-import-videoframes-to-layers it will make 30 layers and the .gif will end up flashing too much.
Any ideas?
0
votes
1answer
83 views
Why is my Nikon D3200 display not changing in manual mode? [duplicate]
I just got my Nikon d3200. When I use manual mode and change my aperture, shutter speed or ISO, nothing changes on the screen. I found the same working in Canon. Is there any setting that I should ...
4
votes
1answer
84 views
Is there any difference in the glass between Zeiss cine and photo lenses?
I've heard that the Zeiss cine lenses (Compact Primes, Ultra Primes, etc...) are just rehoused ZE/ZF.2 lenses. Are there any differences in the glass between their lenses of same focal length (i.e. ...
1
vote
2answers
45 views
Just upgraded to a newer version of Photoshop, how do I get Lightroom to recognize it?
I had PS5.1 when I installed LR4 and now I have CS6, but LR4 still opens everything in CS5.1. How do I make it open everything in CS6?
-1
votes
4answers
77 views
What software should I use to create a slideshow with music? [closed]
I'm looking for a software package that allows me to create a slideshow with music. In particular, I would like to be able to set the duration of each picture, in order to sync up with the music.
...
1
vote
3answers
78 views
Do I risk damaging my camera if I use an aftermarket AC adapter?
I am looking at AC adapters for my Canon 50d. The Canon original is several times as expensive as some of the aftermarket options that I have found. Do I run any significant risk of damaging my camera ...
10
votes
5answers
980 views
Do you still need an ultra wide angle if you can now stitch images?
Given that some software nowadays is so powerful you can easily stitch images together for a really wide view (either with panorama mode on camera or something like photoshop), is there still a point ...
5
votes
1answer
109 views
How to deal with large exposure shifts during time lapse?
First - I've 30 yrs shooting experience. Not a novice.
But, total Newbie to Time-lapse. Just did my first couple of tests yesterday. My wife was shopping - had to occupy myself.... I kept them short ...
4
votes
1answer
80 views
What is the difference between microcontrast and sharpness?
I keep hearing the internet talk of this micro contrast from the famous Zeiss lenses. What is it? Is it the same as sharpness? And if so, why is it called differently for Zeiss? Does anyone have any ...
1
vote
1answer
80 views
How do I speed up Apple Aperture?
For my photo post processing software, currently Aperture is my program of choice. However it is extremely slow with my computer. I consider myself having a decent piece of hardware. I'm using the ...
