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by Bart Arondson

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All Questions

0
votes
0answers
28 views

evaluating shutter speed in auto mode in Canon EOS xD

I have a Canon EOS 1100D/ Ribel T3, and with Canon EDSDK, I wrote a computer program to control it by my laptop. Now I have some problems with taking photo during the day and various light range. ...
0
votes
0answers
29 views

Effect of color space on RAW? [duplicate]

It's documented that WB setting doesn't affect the RAW data — just the preset develop settings. But what about the color space? I'm wondering whether setting sRGB (vs Adobe RGB) in the body ...
2
votes
2answers
116 views

How to estimate camera sensor size?

I am using a smartphone for capturing photos and I need to estimate the camera sensor size (mm*mm). I have the resolution (in pixels) and the focal length (in pixels). I can also measure the size of ...
1
vote
2answers
131 views

How do I tell if an image is exposed correctly when I can't trust the LCD? [duplicate]

I used exposure compensation when I take my shots and adjust it whenever it needs adjustments. Most of the time I shoot using Manual mode. My problem is, when I'm out on a sunny day I can't judge ...
3
votes
4answers
153 views

How can the focal length of a lens be many times greater than the lens's physical length?

I bought a Tamron 16-300. Question is: how can it have a focal length 0f 300 mm when it is only about 30 mm long? Doesn't the lens have to be 300 mm from the sensing element?
-1
votes
1answer
43 views

Source for colored Wratten filters?

I need 13 different Wratten gelatin filters to use in some research in anatomy and I need a specific spectrum of light filters. I need #'s 3, 9, 15, 16, 21, 24, 25, 29, 44, 53, 58, 98, and 31 or 32. ...
1
vote
1answer
62 views

Exporting jpg files from Lightroom without develop adjustments

I am starting with Lightroom 5. I imported my raw pictures from my Canon and made some changes in some pictures. Then I've exported these pictures to my client and it's alright. Now I want to export ...
5
votes
3answers
457 views

How do I get accurate color when taking a photo of an LED?

When I'm taking a photo of a LED diode (turned on), it appears to be brighter than it should be and its color is false. For example, red diode looks pink. I have tried changing white balance or use ...
5
votes
1answer
190 views

Aerial Camera Ground Footprint Calculation

I have a very simple math problem, but I cannot seem to figure it out. I need to calculate what portion of the ground will be visible when viewed from a UAV mounted camera. I believe I have it solved ...
0
votes
2answers
81 views

What is difference between a 18-55mm and 18-105mm lens? [duplicate]

So what I meant to say is that what exactly is the difference between 18-55mm lens (in general, not specific to any company) and a 18-105mm lens. To me 18-105mm lens looks much better (not considering ...
-2
votes
1answer
115 views

Nikon D750 or D5300 for YouTube Videos and macro/landscape photography? [closed]

I'm a beginner with DSLRs and it would be my first purchase so I don't want to waste my money. I've done some research and have found these both cameras to be good. The only problem is that which one ...
7
votes
5answers
3k views

Does a “body-only” DSLR need a lens added before use?

What does it mean for a DSLR camera to be described as "body-only"? I found one advertised for sale that was described as such, and I don't know if I'll need to add a lens. I assume that it means ...
0
votes
0answers
27 views

Problems with shutter speeds in landscape orientation with Canon New F-1

I use a Canon New F-1 and as long as I use it in portrait orientation all of the shutter speeds are working correctly. However, as soon as I rotate the camera to landscape orientation it behaves just ...
0
votes
0answers
36 views

Beginner Astrophotography [duplicate]

I'm very new to this field and any helpful suggestions would be very much appreciated. I have acquired from a friend a Nikon D7000 and the standard 18-55mm kit lens, but can you suggest a lens or ...
0
votes
2answers
115 views

Can a lens be a zoom lens and a macro lens at the same time?

I am planning to buy an entry level SLR camera, mainly for use capturing macro and portrait photos. However, I'm a bit confused by this lens which is described as "Tamron AF 70 - 300 mm F/4-5.6 Di LD ...
0
votes
1answer
36 views

Is there a medium format film scanner that has an automatic feed

I have a huge stack of old medium format negatives, I want to somewhat automate the scan (there are 1000 or so!) I'm wondering if there are any medium format scanners have some sort or automated feed. ...
1
vote
1answer
38 views

Nikon D5100 - If tethering software is being used, i cannot use a wireless trigger

I'm using a Nikon D5100 and I would like to know how to use USB tethering with live view and meanwhile to be able to take photos using a wireless remote trigger. At the moment, once I open "Capture ...
-2
votes
1answer
69 views

Easy DIY photo paper? [closed]

I have no film for my pinhole camara, and i can't buy any. how can i take easy safe photos? I can't buy anything. I WILL ACCEPT ANYTHING. EVEN LEAVES.
6
votes
4answers
946 views

Is it better for a beginner to start with black and white photography?

I'm quite a beginner in photography with no real experience in visual art. I became interested in it about 10 months ago. I inferred from the literature to avoid color photography for 2 to 3 years, ...
-1
votes
1answer
60 views

how to convert CR2 to jpg in batches on digital photo professional 4.1

how to convert a batch of CR2 to jpg on digital photo professional 4.1 Step by step please.
0
votes
3answers
95 views

How many stops are there between 1/4000 and 1" shutter speeds [duplicate]

I've taken a series of photos as a bracketed HDR, starting at 1/4000th of a second going up to 1 second. How many stops are there between those? How would you be able to tell? The aperture and ISO do ...
5
votes
3answers
177 views

How to fix chromatic aberration with free software?

Here is a zoomed-in example of an image I shot that has a bit of discoloration due to the chromatic aberration of the lens. What's the easiest way to fix this problem using only free software such ...
0
votes
1answer
42 views

Can I use a Metz flash with Yongnuo trigger?

I have a Metz AF 52 flash and a Nikon D5200 camera, which has no wireless commander. Will a Yongnuo trigger work?
0
votes
2answers
116 views

How do I measure the correlated color temperature of a light source with a DSLR without a gray card?

By curiosity, I tried to measure the correlated color temperature of different light sources in my house by taking a photo of a white object (a piece of paper) lit by a single source at a time. The ...
1
vote
1answer
47 views

Why does AF assist light only work with center focus?

Last night I had some problems with the AF assist light of my D80 that made me miss some pictures. I thought it would be defective, although I was able to use it the previous time. Looking for the ...
0
votes
0answers
20 views

Adding blurred border to image using GraphicsMagick [migrated]

How can I add a border of 100px to all sides of a jpg that is made up of the perimeter pixels stretched out and blurred? e.g. the border to the left of the image is just columns 1-3 stretched ...
2
votes
1answer
180 views

What are the sales volumes of 50/1.4 and 50/1.8 lenses?

Not a very interesting question in and of itself, but I'd like to get some numbers to use in a following question.
2
votes
1answer
59 views

What is the difference between Reversing Ring and Reverse Protect Ring? [duplicate]

I want buy a Macro Reversing Ring for Macro shot but then I can't protect the lens with a filter. Can I use Reverse Protect Ring for lens filter (like UV filer) or lens Cap?
1
vote
1answer
83 views

Android application similar to Apple Aperture / Adobe Lightroom?

I'm looking for an Android photography application for my tablet which will work similar to Apple Aperture. The main features I'm particularly interested in are: The ability to rate photos 1-5 Basic ...
1
vote
4answers
150 views

What to gain from using a Nikkor AF-S 85mm f/1.8G instead of a AF-S Nikkor 35mm 1.8G

After debating the old age 50mm vs 35mm, I have opted to go for a 35mm. I have a Nikon D3200 with a Youngno Flash, and just acquired a SB-600. I shoot two things: clubs/nightlife and weddings as a ...
1
vote
2answers
62 views

Canon 600D Images [duplicate]

I've been playing with my new 600D and one thing is really starting to annoy me. When I view an image on the canon's screen, the image is clear and bright. The same is true also if I'm controlling the ...
0
votes
1answer
35 views

Camera stops by itself while shooting, or shows no battery, then ok again?

Here is what happen to me lately. I was shooting inside a home, doing some HDR photos with my Canon 7D (settings were : timer 2 sec + high speed shooting + ExpoComboAEB) so basically the camera ...
2
votes
3answers
73 views

Does the Exposure Slider in Adobe Camera Raw Have Same Effect as in camera Exposure Compensation?

My assumption is that the Exposure slider in ACR does NOT have the same effect as using in-camera Exposure Compensation. Am I correct? Background: I shoot in raw. In either Aperture priority or ...
0
votes
0answers
13 views

How do I open a Nikon AS-2 flash coupler?

How do I open a Nikon AS-2 flash coupler? I am not sure how and don't want to break it.
0
votes
1answer
52 views

Does the K1000 need a battery to trigger the flash?

The Pentax K1000 is a classic, all-manual film camera, and just about the only annoying flaw is that the meter doesn't turn off, depleting the battery over time. Even if you put the lens cap on, it's ...
3
votes
3answers
467 views

Background blur vs. frozen object in long exposure flash photography

I recently watched Adorama's video on rear curtain sync flash photography. At 4.12 to 4.42, the presenter claims that when using front-curtain sync, the background/long exposure blur will be put on ...
1
vote
1answer
35 views

Lightroom- Renaming timeline files to the exported name

After importing files in LR, they keep their name that the camera gave them (e.g. DSC123) I then export them using a different name and that means that when I compare exported photos to those in LR, I ...
0
votes
3answers
48 views

Lightroom- How to import into same folder from different day?

I often import files to lightroom then rename the folder as the client's name but after a couple of days I might do some more photos for them or finish the shoot. The issue is that lightroom imports ...
3
votes
9answers
254 views

How can I improve portraits when shooting in low light without flash?

I see a lot of questions about low light, and one of them which stood out to me was How can I improve my exposure in low-light situations? All my flash pictures tend to turn out great, but my shots ...
3
votes
1answer
71 views

How to change which modules are auto-applied in Darktable?

When I open a raw file in Darktable sharpening and a base curve are automatically applied. How do I alter this? I would like to add lens correction.
0
votes
2answers
83 views

Minimum requirements to capture a “Street View”-like photo?

What equipment is needed to take panoramic street photography like in this example.
1
vote
2answers
56 views

Nikon D3000 70-300 Nikon lens - How to get lens converter off the lens?

I put a Vivitar tele converter on my 70-300 lens. It went on easy but wont come off. How do I get the thing to come off my lens? I have a Nikon D3000 camera.
0
votes
5answers
80 views

Single remote trigger for fifty cameras

I want to assemble several cameras, triggered by a single remote, is it possible? The trigger doesn't have to be wireless, cause the cameras will be very near from each other, plus the cameras need to ...
2
votes
3answers
571 views

Horrible quality of prints developed from film

Recently my girlfriend shot 2 rolls of color film and we had them developed + photos developed at a small local photolab. What surprised me was how the prints looked. They looked low-res, on some ...
2
votes
1answer
59 views

Lightroom: how to insert Lens data to many photos at once?

I'm shooting with a manual Rokinon 8mm Fisheye lens. Photos do not contain data from it, such as aperture and lens maker. Now i'm using the plugin LensTagger to mass batch edit files to add the ...
2
votes
1answer
138 views

Nikon D3200 does not recognize the Nikkor AF-S 50mm 1.8G

I bought a new Nikkor 50mm AF-S 1.8G to add to my Nikon D3200, however, it will not recognize the lens. It says "Lens Not Attached" in all modes with error "NON CPU lenses can only be used in manual ...
0
votes
2answers
73 views

Color spaces for large prints / and or web

I am using a MacBook Pro (2011) and edited a photo from camera raw into photoshop. The color space is set to sRGB within photoshop. I used Lightroom to export to JPEG while ensuring that the color ...
4
votes
2answers
638 views

Why are large zoom ratio constant apertures lenses not generally available?

I know about 17-55 f2.8 and the likes of it, but I am talking about something say 18-135 f2.8. There exists 70-200mm f2.8 and the range (200-70 = 130mm) is much bigger than in 18-135. I am aware of ...
0
votes
2answers
82 views

Fungus cleaning from a Nikon superzoom

Happened to be a proud owner of Nikon Coolpix P600 till I discovered that ugly fungus on its lens! Contacted the Nikon India service centre at Kolkata and they said that there is no option of cleaning ...
0
votes
3answers
73 views

How to flag multiple photos in Lightroom?

If I have multiple photos selected at the bottom row and press P, only the highlighted photo of the selection is flagged, not the whole selection. In develop module, how do I flag multiple photos at ...

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