Butterfly

by Rodrigo

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39 views

Mechanical Aperture Control Adapter for my Nikkor lenses

I have the following lenses --- AF-S NIKKOR 18-70 mm 1:3.5-4.5G ED AF-S MICRO NIKKOR 105 mm 1:2.8G And I use it for High Speed Videography mainly. Since these lenses have no mechanical aperture ...
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57 views

Lightroom 5 colour profile issue

I have just noticed that lightroom 5.7 exports every jpeg with AdobeRGB profile embedded, no matter what profile I select in export dialog box, Anyone has an idea why?
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56 views

Nikon D5200 Auto-Focus problems though working with live-view

Recently returned from Nikon Uk after a focusing issue I find that with one of my lenses, (50mm f1.8G) the camera will not auto-focus using any of the modes or areas, though it works fine with my ...
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55 views

Very small quick-release?

I'm thinking of a way to easily swap out a cellphone clamp and a Joby gorillapod. The tinyest gorillapod has a quick release built in, with the removable end mounting on a 1/4-inch screw. The other ...
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29 views

Panasonic GH3 bulb setting without remote?

I'm trying to use the bulb setting for a 20 minute exposure on my Panasonic GH3. Too long to hold the button down and Lumix Link, the android app, can't do it, as best I can tell. Short of buying a ...
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65 views

Nikon D5100 flash doesn't work

My Nikon D5100 recently stopped working all-together and I was able to reset it by holding down the menu button and the quick set (i) button. that released the shutter lock. Now the flash and the ...
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41 views

smart phone gripper for large phone

According to the much-copied review, “the QX1 includes a bayonet-mounted clamp that can latch onto your phone. It can be stretched wide enough to fit pretty much any phone on the market (including ...
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43 views

Batch saving images with reduced colors

I'm trying to record and run a macro in Photoshop that saves images as PNG with just 8 colors. Recording the macro, I save for web, select the options I want, and hit save. But when I play back the ...
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144 views

Are mobile phone camera lenses good enough to support 20MP sensors?

With mobile phone cameras approaching 20 MP while maintaining small sensor sizes, pixels dimensions are typically around 1 μm or lower. What about the lenses? Are they good enough to produce an Airy ...
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51 views

Looking for adjustable length hanging system

I do a lot of firearm photography and am looking for a better system for staging the guns. My current setup is a white muslin backdrop that falls down over a table. I then have an aluminum tube that ...
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160 views

Converter and lens combination to try on sony a7 or a6000

I have bought an a6000 with the kit lens, and it takes nice pictures but I miss some things that I was able to do with my Canon DSLR and old lenses. I have kept some of my Canon lenses. Should I buy ...
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64 views

How can I control the white balance from an Android application?

I am currently working on an Android Application that does Day-to-Night/Night-to-Day Time-lapse using Bulb Ramping, and I think I am 80% there. What the application does is that it takes photos in ...
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47 views

Will the auto document feeder scanner in PIXMA printers scan sheets as small as 4x6?

I'm interested in buying the MX472 to scan 4x6 photos using the auto document feeder feature. Does anyone know if this will work: Will it be able to scan multiple 4x6 photos in the tray, just as ...
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195 views

35mm Loxia vs Sonnar, IQ Comparison

How do the Sony Zeiss Sonnar 35mm f/2.8 and Zeiss Loxia 35mm f/2 lenses compare on the Sony a7 series cameras? (I am interested more with image quality than ergonomics, build quality, price, etc.) I ...
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50 views

D5200 LCD monitor failure

The monitor on my D5200 has suddenly stopped working. There is power to the camera and I can still shoot via the viewfinder but can't do anything with the monitor. Any ideas what could cause this and ...
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90 views

Canon EOS Rebel T3 Shutter Speed Acting Weird On Auto

Recently my Canon EOS Rebel T3 has been really acting up. No matter what mode I am on (Creative Auto, No Flash, etc...), except for manual mode, the camera will take either all black or all white ...
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47 views

In intuitive explanation what is zig zag scanning?

In intuitive explanation what is zig zag scanning and what is the purpose for using it in image processing ?
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34 views

USB Possibilities in Olympus PEN Lite E-PL5

can I connect a GPS unit to Olympus PEN Lite E-PL5 with USB? I know there is SmartShutter SS-O1 but not sure if this unit geotagg the raw files or it is just a logging device! I was thinking what is ...
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83 views

How does the Tamron 70-200mm F/2.8 without VR/IS compare to the Nikon 70-300mm F/4.5-5.6 VR?

I'm looking at two different lenses. The Tamron AF 70-200mm f/2.8 Di LD IF Macro Lens. ...
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96 views

Why does an exported JPG image from RawTherapee have much more noise?

Please see the two images below. Any idea why the export output has more noise?
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48 views

Albinar's compatibility with Canon t5

So I have an Albinar ADG 28-80mm lens, that I have acquired, and I was wondering what mount adapter would be required for it to work on either the Canon EOS Rebel T1i or T5, I have both. Thanks!
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27 views

Pentax K-r: how do I turn off multiple exposure?

Multiple exposure: I know how to turn it on but how do I turn this function off? I can't seem to get lower than 2
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53 views

Contrast detection AF not working?

What are the possible reasons why my Nikon D3300 won't focus properly at all on live view? It works perfectly when using phase detection (or when looking through the viewfinder), but when I start ...
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29 views

Canon PowerShot SX160 prevent lens opening due to accidental power on?

Just bought my daughter a SX160 as her first real camera and I neglected to check if there was a way to prevent the lens from opening on an accidental power on. My old PS A710 had a slide button for ...
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53 views

D7000 LCD preview error

I have a problem with a 2 year old Nikon D7000. When the camera is turned on, the top LCD is blank and the viewfinder looks like the depth-of-field preview button has been pressed. When I press the ...
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38 views

Canon rebel t5 image on LCD

When I push the LCD view display button, if I take pics from the screen--not looking through the viewfinder--it fails to show an image to take the pic. If I switch settings to video it does display ...
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50 views

Old Yashica Flash with Nikon D3200

I have a Nikon D3200 and an old Yahica Branded Flash that came with an old Zenit ET. I googled for the instructions for using old flash with new cameras and found out that the excessive voltages could ...
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44 views

Are there any hardshell covers / protectors for lenses?

I'm a concert photographer, and I tend to end up in mosh pits quite a bit. I've mastered the art of shielding my camera from fists and beers, but I have been starting to see some wear and tear. Are ...
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93 views

Samsung NX1000 focus ring does not work, can't get off manual focus mode either

I bought a used Samsung NX1000 last night, everything is great but it's stuck on Manual Focus mode. The Single Auto-Focus [SAF] and Continuous Auto-Focus [CAF] are greyed out no matter what I try. ...
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71 views

History or Name of style where model has black writing on their chest?

Going back a few months up to a year or so ago I noticed a lot of images showing up on Instagram and Tumblr depicting images of shirtless male models with writing on their chest in either black paint ...
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187 views

What is the impact of changes between the old and new Nikon 18-300mm lens?

They are: Nikon AF-S DX NIKKOR 18-300mm f/3.5-6.3G ED VR Lens (new) Nikon AF-S DX NIKKOR 18-300mm f/3.5-5.6G ED VR Lens (old) As far as I can tell the only differences are: The old one has an ...
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81 views

Where can I get poster printing for higher resolution than 5400 x 3600 for 36“ x 24”?

The highest "common" resolution I've seen for printing a poster is 5400 x 3600 for the reasonable price of (~$15), but I have the ability to make the images I want to print (procedurally generated) as ...
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112 views

My DSLR Canon generates Raw and JPEG images of same size

Recently i started facing this problem of not getting RAW (CR2) images larger than the JPEG images when I select options RAW+L (quality setting of the camera). Initially I was getting almost 11MB of ...
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73 views

Can I use Mikona MV-328 flash on any DSLR cameras?

I am having Mikona Electronic Flash (model MV-328). Can I use this flash with Canon or Nikon DSLR cameras directly or with some other way.
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74 views

What is the difference between edge detection, Sobel detection, and Canny detection?

What is the difference between edge detection, Sobel detection, and Canny detection
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57 views

Nikon zoom lens troubleshooting

My Nikon D5100 squeals and won't photogragh on its 55-300mm lens beyond 80mm. I've tried turning autofocus on, taken out & reinserted battery, and changed memory cards.
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33 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. ...
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37 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 ...
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18 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.
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79 views

Flash issue on Canon 600d and 500d - showing Err 20 when flash is in manual mode

I've got a canon 600d and a canon 500d. My flash is a Jessups 360AFDC. Although the flash works consistently on both cameras in TTL mode I have problems getting it to work on both cameras in manual ...
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31 views

Photoshop saved window arrangements

I have two related concerns, both with the same issue of using my window layout without having to rebuild it from scratch. I have, in PS CS6, various pallets of tools arranged on a second monitor. ...
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105 views

Canon EOS Rebel T3i takes a photo upon turning it on

I am having several problems with my Canon EOS Rebel T3i. One of which is that when I turn the camera on (in any mode) it automatically take a picture. I am not touching the shutter button or any ...
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59 views

What is the theoretical maximum for panorama alignment and blending algorithms get?

Panorama stitching and blending has gotten very good and quite advanced. For example, the alignment algorithms seem to be able to compensate for any sort of camera movement, and Smartblend (at least ...
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18 views

Standards or widespread guidelines for updating of Exif or other metadata when modifying photos or other images?

I'm working on software that allows users to upload photos (or, potentially, any image). The photos are scaled to a maximum size (to save space) and as part of that change to the image I want to copy ...
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29 views

I cannot download pics into Elements 9

After being able to download pics, it appears I have upset something that now gives me a window saying "The file is damaged or is a format that cannot be included in the organizer" What have I done ...
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33 views

What are good things I can use as background roll supports?

I often buy backgrounds that come rolled but often need extra strengthening to make it easier to roll them back up and to go onto a background support easier. I am lucky that some of the ...
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109 views

I am not able to open raw files I have previously opened in photoshop 5.1

I use the Adobe DNG converter for raw files from my Nikon D3300 (which is a pain but I do it) but now I have to do that same thing for my Nikon D7000 ... even for files that I have previously opened ...
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53 views

When does the Sony NEX-5R use release priority?

As I understand it, focus priority delays the shot till focus is achieved, while release priority potentially takes a mis-focused shot. Wikipedia says that release priority is usually used in ...
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70 views

Photo loses detail out of photoshop

I have a photo that I modified some levels in photoshop. The file I opened in photoshop is tiff uncompressed, and I saved in the same format. In photoshop it has many details which seem to get lost ...
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126 views

Raw image looks different in Camera Raw 6.7 than when opened in Photoshop CS5

I know a similar question has been posted before, however, I am now not referring to a preview image, but the same .dng -file first processed to look good in Camera Raw and when I click "Open Object" ...

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