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.CR2 pictures damaged and corrupted

Last night, I shot 400+ pictures with my Canon 650d. I was happy until I plugged my memory card into my card reader. The .CR2 files look okay, but when I import them to Lightroom, an error shows up: "...
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2answers
2k views

What shutter speed to use for indoor karate without flash? [duplicate]

What shutter speed would you recommend for an indoor karate tournament with slightly dim fluorescent lighting? I will not be using a flash. I'll be using a Canon T3i with an 85mm f/1.8 lens and using ...
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1answer
840 views

Measuring SNR of a DSLR from raw image

How can I calculate signal to noise ratio of a DSLR, using raw images? Is it simply whole counts minus dark counts over dark counts?
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2answers
22k views

Why is my Nikon D750 not autofocusing?

I bought a brand new Nikon D750. I'm upgrading from a D3100, big jump, I know. I've shot in manual mode and alternated between auto focus and manual focus depending on the subject. I thought I wasn't ...
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votes
1answer
4k views

EF vs EF-S for a Canon 70D body? [duplicate]

Stretching my budget for a new 70D body. Seems to be exactly what I'm looking for. Am I wasting my money only purchasing an EF lens to go with it? The EF-S is well out of my price range.
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2answers
2k views

Why can't I read a 2GB CF card from a Mac or PC after having formatted it on a 300D with a 1.1.1 firmware?

Although I can still access the CF card from the camera, I can take pictures and browse them. It's just that the mac can't mount the CF card anymore (I can read other cards). The same card was working ...
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votes
2answers
775 views

How to know the resulting iso of stacked images?

I've read in several questions like this one that stacking photos helps to reduce the noise of the resulting image, which is really helpful in astrophotography. My question is if I can know a priori ...
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votes
4answers
524 views

What's the difference between using an Image Stabilization and not using it?

So, I want to make decision about buying a telephoto lens, the Canon EF-S 55-250mm f/4-5.6 IS STM and Canon EF 75-300mm f/4-5.6 III USM. Which annoys me is the IS function, my friends asked me "what ...
0
votes
1answer
481 views

Camera dynamic range and Lightroom exposure slide

I have the Nikon D600, at ISO 100 has more then 14 EV of dynamci range. Now if I shoot a photograph in raw file and open it in Lightroom, with the exposure slide I can go only +5EV and -5EV. I am ...
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2answers
2k views

How does the Tamron AF 28-75mm f2.8 compare to Canon EF-S 15-85mm f/3.5-5.6 IS USM?

I am looking to buy a good walk around lens for t3i to finally upgrade from my kit lens. My current preference is Canon 15-85. however I am wondering if I should get Tamron AF 28-75mm f2.8. I am ...
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3answers
163 views

Does a camera have to have a contiguous housing?

The lens group in this picture would have its own protective lens tubes like the one on a camera but one for each lens group. What would be an issue having a gap between the lens group and stray light ...
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5answers
244 views

Should I purchase a speed booster to enlargen my kit lens's field of view, or purchase a 35mm prime?

I own a Canon Rebel T7i with only a kit lens and the APS-C sensor size is bothering me for some reason. Is it a good idea to purchase a speed booster in order to take my APS-C sensor into a full-...
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votes
1answer
211 views

Can a camera be a mile long?

Could parts of a camera be spaced out over a distance rather then together to work in a way a normal camera cannot? What characteristics would this camera have over a normal camera? In the picture ...
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votes
1answer
480 views

Rename a file based on whichever tag contains the earliest or oldest date?

I use the following command to bulk rename images from inside a bash script so each image is named according to the date the picture was taken: exiftool -r -f '-filename<${CreateDate}_${model;tr/ /...
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votes
1answer
380 views

What causes these “striped” streaks from light sources? [duplicate]

About 10 days ago I took this photo with a Samsung G S3 and why do those lights appear as eh.. eh... stripes?? Just like there was a star filter but lacking the stripe which is perpendicular to the ...
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2answers
105 views

Fixed Focal Length Lens for DX camera [duplicate]

I want to get a good Fixed Focal Length Lens with wide aperture for my Nikon D5300 which is a DX Camera and while searching for lens in India there were only 4 lens for DX compared to the 44 lens for ...
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votes
1answer
1k views

I was asked to design a calendar using my photos, what do I charge for the “art fee” for 12 photos, should my name and copyright be included?

Last year, and for the first time, I tried creating and selling calendars featuring my photography. They turned out pretty good but in the end I spent too much time on choosing the photos, the actual ...
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2answers
5k views

Is it stupid to purchase AF Nikkor 50mm f/1.8D over AF-S NIKKOR 50mm f/1.8G to save a few bucks? [duplicate]

I own a Nikon D5300 body, but wish to upgrade to a Pro FX body in future (not any time soon). Between AF Nikkor 50mm f/1.8D and AF-S NIKKOR 50MM F/1.8G, I prefer to buy the former, but at the same ...
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votes
3answers
9k views

What plugin for Photoshop can I use to remove camera-shake blur?

What is the best anti blur plug-in for Photoshop image editor and how effective can it be without compromising with the image quality or increasing sharpness/noise? I am especially interested in ...
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votes
1answer
15k views

What causes the “Flash busy” message (Canon EOS 1100D)?

Yesterday I was faced with a situation where I often saw the message "flash busy" with no chance to shoot. As I understand it, this can happen when battery power to flash is low, but I only used the ...
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votes
1answer
140 views

Which checklayers are used in frequency separations?

In many high end Frequency separation tutorials they show a variety of checklayers. But finding informations about those check layers, how to set them up, how they work, what they do and what they ...
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votes
2answers
170 views

Is my Nikon 18-200mm 1:3.5-5.6G lens with broken front glass beyond repair? [duplicate]

My lens broke somehow. I didn't drop it as far as I remember, but the cause of the drop isn't really the point... a part of my lens broke, and my lens cap is stuck to it. Is my lens a goner? Can I buy ...
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votes
1answer
153 views

Prevent Lightroom from discarding lens model from EXIF

I recently got a Tokina 10-17 mm F mount. Lightroom does not seem to be able to automatically recognize this lens based on NEF files. It does not automatically find the correct lens model for ...
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votes
1answer
118 views

Why does the chair and the grandpa look bigger and inflated? [duplicate]

I Was watching one of the actually good movies. In one of the scenes the grandpa tries to "preach" the teens. Here is the scene Its not very obvious but for some reason the chair and the granpa ...
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2answers
530 views

Is it possible to take a self-portrait using a flip rotatable screen DSLR involving the hand ONLY?

Is it possible to take a self-portrait using a flip rotatable screen DSLR for example, like Nikon D5200 and involving the hand ONLY? I haven't found much research on this on the internet so was ...
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2answers
890 views

How can I view exposure matching my camera settings in the viewfinder of my Canon 70D?

I'm new to 70D, coming from a Fuji mirrorless system. I'm used to being able to see my exposure change in my viewfinder as I change settings on my camera. I cannot figure out how to make the 70D do ...
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votes
1answer
723 views

Verifying the integrity of your library

After reorganizing my image collection I moved a bunch of photos between different hard drives. While copying, I did get error messages. Fortunately, I had made multiple copies before doing the ...
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votes
5answers
3k views

How can I translate 1/10th stops from my Sekonic 758Dr light meter reading to camera settings?

Hello I use 758Dr ( newly purchased ). I am stuck with the reading jargon. The aperture is shown always with a fraction and another number. It is stops and the extra number. Light meter is on 1/10 or ...
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votes
1answer
1k views

Why do my images look fine in Lightroom itself but poor quality when I export them?

I'm editing my night shots in Lightroom and use Google Nik Collection Dfine2 to reduce the noise.. Noise reducing in Dfine is the last item in my workflow, and when I export image .jpg it has poor ...
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3answers
251 views

Studio Lighting Flowers

I'm currently using a pair fluorescent lamps (similar to these) to light some flowers (artificial flowers, to be precise) and I'm not 100% satisfied with the outcome. Colours don't seem to be right ...
0
votes
1answer
106 views

I bought a yn560 Iv speed light for my canon 2000d but its not working with the camera [duplicate]

My canon 2000d not firing the yn560 iv speed light
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votes
1answer
801 views

Is there a way to make auto-focus more smooth while filming with Sony A55?

Wondering if anyone can help with this. I have a Sony SLT-A55, and when in video recording mode it is able to auto focus. My issue is that it does this "too quickly". For example, if I'm shooting ...
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votes
4answers
401 views

manual mode in DSLR with constant iso, shutter speed and aperture, intensity of the image still changes

I have a Nikon D3300 camera. I am doing a project in which I have to project an image of uniform intensity value onto a white screen and take photo of it. This is actually the calibration part. But ...
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votes
1answer
343 views

How would I blur something out of a photo? [closed]

If you take a picture of - for example - a car and you get the license plate number in it; how do you blur out the numbers? (I would also like to know how to do this with a video if possible).
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votes
1answer
389 views

How to place a light-weight point and shoot camera on a balloon

How do I place a light-weight point and shoot camera on a balloon filled with helium gas?
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votes
2answers
948 views

What’s an equivalent focal length of a fullframe lens on a crop sensor? [duplicate]

I have an old SLR film camera lens with a focal length of 58 mm mounted on my Micro 4/3 camera with a crop factor of 2. How does mounting the lens on a different sized sensor change the effective ...
0
votes
1answer
45 views

Can you use a Canon M6Mk2 with an adapter for a 70-200 mm zoom lens and the 2.0 converter to shoot a Comet?

I am planning to shoot the NEOWISE Comet
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votes
0answers
484 views

Which filters should I be buying for Canon EOS 550 D, 18-55mm and 55-250mm lenses? [duplicate]

Possible Duplicate: What are the must-have filters for a new photographer I'm planning to order my first DSLR: a Canon EOS 550D with 18-55mm f/3.5-5.6 IS Lens, and a 55-250mm f/4.0-5.6 IS ...
0
votes
1answer
2k views

Canon Digic 6 and Digic 7 [duplicate]

Canon 80 D with DIGIC 6 was released in Feb 2016. Canon 77D with DIGIC 7 was released in Feb 2017.Does that make the canon 77D better than canon 80 D eventhough 80D has better features and is more ...
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votes
2answers
172 views

How do I get my photos off a card with a “card cannot be accessed” error?

Can anyone help me please? I'm about to use my camera, a Canon 600D, but when I switched on my camera I cannot access any of my photos in my camera. It says "card cannot be accessed." I tried to ...
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votes
2answers
358 views

What is the proper formatting of the Subject Tag in XMP?

My intention is to assign tags to each image based on the content in the image.For example This image can be be assigned tags Tulips,Flower etc So can i assign subject like tulips,flower and so on ...
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votes
3answers
211 views

Why is view on camera different from actual output viewed on phone?

I have a Nikon D5600. When I use telephoto lens (70-300 mm) for bird photography, on full zoom the bird does appear clear and near, but when the actual photo is produced, the bird appears far. When ...
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votes
4answers
1k views

Lens for Nikon D5600 recommended for bird photography

I purchased Nikon D5600 last month. While doing bird photography I realize, 70-300 mm lens is not sufficient. I have few queries: (1) Which lens is recommended for wildlife photography? I checked ...
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2answers
413 views

Trying to understand losses in jpg compression

I have a bunch of jpegs taken with a Nikon D3200 at 6016 x 4000. They weigh between 9M and 12M each. To try and reduce space a bit, I compressed copies with the default Windows utility, and the new ...
0
votes
2answers
3k views

What will happen to a camera if the relative humidity drops to less than 35%?

What will happen to a camera that is stored in an environment with a very low relative humidity? Will the camera crack, or what will happen? Will it be the same for DSLRs, non-weatherproof point &...
0
votes
2answers
1k views

What should I consider when buying a lens hood? [duplicate]

I have Nikon D5200 with 18-55mm kit lens, and I want to buy a lens hood. Some related questions: Will the lens hood increase the photo quality? What are the types of lens hood? Should I be looking at ...
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votes
2answers
491 views

Difference between D&G shoot vs Other professional shoot

NOTE: I can't post more than 2 links since I don't have at least 10 reputation hence some links need to be copied and pasted. I asked a photographer to do a fashion shoot for some garments and I ...
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votes
2answers
17k views

Why Small aperture (less light) has Large depth of field? [duplicate]

Possible Duplicate: Technically, why is the out of focus area blurred more when using a bigger aperture? I understand that a small aperture (large aperture number eg. F/22) means large depth of ...
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votes
2answers
505 views

Cheap panoramic setup

I'm looking for a cheap panoramic 360x180 (approx. don't mind the "feet" as long as it's close) setup with decent resolution. I weighed my options and thought up the following: cellphone with fisheye ...
0
votes
2answers
695 views

Dust spot or scratch?

I'm a bit worried about a potential scratch to my d7000 sensor as shown in the rather grainy image below. Note the black line in the top left. It is more of a fine line vs. the 'spots' I've seen in ...

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