Mist

by Jakub

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56,588 reputation
8116261
bio website jonrista.com
location Aurora, CO
age 35
visits member for 5 years
seen Jul 21 at 15:42

I am a relatively new photographer, having been at if for only a few years. I chose Canon gear when I finally took the plunge into DSLR. I am an avid hobbyist now, and love everything about photography, from the gear, to the science, to the art. I spent years reading about the technology and photography theory, so I am very well versed in the technical aspects of photography. My artistic skills are moderate, but improving. You can see my work @ the following sites:

My interests lie primarily in nature photography:

  • Birds
    • Songbird Setups
    • Shore Birds & Waders
    • Raptors
    • All others
  • Astrophotography
    • Moon
    • Wide Field
    • Deep Sky
  • Landscapes
  • Wildlife
  • Floral Macro
  • Insect Macro
  • Abstract

I currently use the following gear:

  • Cameras
    • Canon EOS 7D
    • Canon EOS 450D (Rebel XSi)
  • Lenses
    • EF 16-35 f/2.8 USM L Wide
    • EF 50mm f/1.4 USM
    • EF 100mm f/2.8 USM Macro
    • EF 100-400mm f/3.5-5.6 IS USM L Zoom
    • EF 600mm f/4 L IS II
    • Canon EF 1.4x TC III
    • Kenko 1.4x Teleplus Pro 300 DGX
    • Periodic Rentals:
      • EF 300mm f/2.8 L IS II
      • EF 500mm f/4 L IS II
      • Canon EF 2x TC III
  • Filters
    • Lee Foundation Kit (x2) + Tandem Adapter
    • Lee .3/.6 ND
    • Lee .3/.6/.9 Soft Grad ND
    • Lee .3/.6/.9 Hard Grad ND
    • Lee CPL
  • Tripod
    • Gitzo Systematic GT3532LS 3S. Series 3 Tripod
    • Jobu Pro 2 Gimbal
    • Gitzo Mountaineer GT0541 4S. Series.0 Tripod
    • Gitzo GH1780QR Series.1 Mag. Center Ball Head

Nov
9
revised How can I get everything in focus?
added 612 characters in body
Nov
9
comment How can I get everything in focus?
It's always good to be back. ;-) Although I can't complain about where I've been...being out using my camera and taking pictures is always the best. :D
Nov
9
answered How can I get everything in focus?
Nov
8
comment What noise removal tools work best, and why?
+1 for Lightroom 3. With LR2, their noise reduction was pretty poor, but LR3 really pushes the envelope. I've been able to clean up some very badly noisy images shot at ISO1600 that couldn't be fixed before.
Nov
8
comment Is there a film scanner that can read the data from APS films and include it in the EXIF metadata?
@Rowland: So it appears...I though I had read somewhere that it did read the magnetic strip. I've done all the searches known to mankind on this subject. The only additional piece of information I can offer is "Magnetic IX (Information Exchange)" is another term to search for. Outside of the Fuji Minilab, there does not appear to be any other device on earth capable of reading the APS magnetic strip.
Nov
7
comment Do DSLRs play games with ISO when used with fast lenses?
...rather vague. They state many times that they normalize all images to an 8mp image 'printed' on an 8x12 (20cm x 30cm) image at 300dpi. They also state that it is "exactly" 8mp, however an 8x12@300dpi print is 8.6mp (3600x2400). If DXO has a page somewhere where they clearly and precisely state exactly how they do things, and it all adds up, they can clear their name with me, and I'll accept their results. But after digging through their site for a while, I have not found such a page. (Please send a link if you know of such a page, I would be very interested in reading it.)
Nov
7
comment Do DSLRs play games with ISO when used with fast lenses?
Regarding image size...if they "normalize" all images to exactly 8mp, then the images they compare are not objective. By scaling down images, they are applying some kind of interpolation and filtration to the raw sensor output. If their measurements are based on post-scaled images, then I can't help but question their results. If they crop, that is a different story, as cropping would at least retain as much information from the sensor as possible. Even with cropping, the image contents between sensors will not be identical, so you have another problem. Again, exactly what DXO does here is...
Nov
7
comment Do DSLRs play games with ISO when used with fast lenses?
Regarding my own measurements, they seem to be in line with what most other photography review sites (such as dpreview.com) state. I get between 7-8 stops of dynamic range on the 450D. If what you say about subtracting three stops from DXO's measurements is true, then their numbers are also in line with everyone else (10.7 stops - 3 stops = 7.7 stops, or between 7-8 stops of DR.) I am not sure where DXO states that you need to subtract 3 stops to get a real-world value for DR...if that is the case, they need to make that more obvious, as just looking at their raw data is misleading.
Nov
7
comment Do DSLRs play games with ISO when used with fast lenses?
"Most of the 4294967296 RGB value combinations you get with 36bit color are impossible". Unless I am mistaken, a 36bit image offers a total of 68,719,476,736 distinct RGB values. That is the number of distinct shades of each color (there are only about 2-3 colors detectable by the human eye, but the eye can detect far more shades of each color). I agree, you are not going to get perfect color with a Bayer array. DXO does not clearly state what that "21.6 bits of information" is. You usually don't rate an analog signal in bits, so if they are measuring an analog, they need a better unit. (dB?)
Nov
6
revised What are best practices for using Lightroom libraries?
added 716 characters in body; edited tags; added 22 characters in body
Nov
6
comment What are best practices for using Lightroom libraries?
Barring significant objection, I'll merge this topic with the one noted by Chills and Sebastian in a couple hours, as they are duplicates of each other.
Nov
5
comment How can you show texture?
+1 Good point about local contrast. Thats not noted enough, but its a very powerful technique.
Nov
5
comment Why is my picture muddy looking?
Looking at that photo on an uncalibrated screen, it is a lot harder to see the differences. If you want to see the improvement offered by local contrast, I recommend saving both the original and the modified versions, opening them in a tool like photoshop, and using layers, align them on top of each other. Turning the top layer on and off will make the improvement very clear.
Nov
5
comment How does the Induro PHQ panhead Compare to the Manfrotto, Gitzo etc. Ballheads and Gimbals?
@BBischof: Aye, these questions are challenging. :) But we like a good challenge (or at least, I do.) I want to reiterate, the Induro head has a degree of fine precision adjustments that nothing else really has, in multiple planes of freedom. If you want that precision, there really isn't anything else like it. However, if you want fluid freedom and ease of use, A Wimberley or Custom Brackets gimbal head would be a better choice.
Nov
4
answered How does the Induro PHQ panhead Compare to the Manfrotto, Gitzo etc. Ballheads and Gimbals?
Nov
4
revised Why is my picture muddy looking?
Added sample image enhanced with local contrast
Nov
4
revised Why is my picture muddy looking?
deleted 1186 characters in body; added 396 characters in body
Nov
3
comment What is exposure compensation?
Very well said. Exposure compensation is definitely the key way to control exposure. I try to avoid full manual mode unless I am using filtration or bulb mode, and use Av w/ EC most of the time. As you said, it is a great way to get quick, on-the-fly changes to metered exposure.
Nov
3
comment What white point temperature should I set my LCD monitor to?
Once you run through a calibration, the i1 should generate an ICC/ICM color profile that it will install into the system. Color profiles include all settings, including white point, gamma, etc., and adjust your screen appropriately. If you have your screen set to oddball settings, such as a white point of 6850k and an oddball gamma of 1.73, the calibrator has to work harder to correct all the differences. If you leave the screen at defaults, which is usually 6500k and gamma 2.2 (or possibly 1.8 for older mac screens), your calibrator will only have to make minor adjustments.
Nov
3
comment What white point temperature should I set my LCD monitor to?
@jfklein: Actually, many screens do come with a white point (or often called 'color temperature') setting. You usually see that on cheaper screens, and it usually has preset valuesl ike 5000k, 6500k, 9300k. Some offer a range of temperatures from 2000k up through 10000k in 1000k increments, and some even offer direct control over red, green, and blue levels so you can completely customize it all. If you buy a hardware calibrator, like the i1 (which is actually pretty good), its best NOT to use onscreen settings. Leave them all at factory default. Let the calibration take care of it all.