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5,655 reputation
617
bio website pfarrell.com
location outside Washington DC
age 63
visits member for 2 years, 10 months
seen Nov 6 at 18:15

Programming since punched cards


Mar
9
comment What are the metal items on top of an older Nikon lens?
BTW, there are two ways to tell that this lens was made after the F2 came out. First, the coupling prongs have holes in them, one hole in each prong. Second, there are two sets of aperture numbers. The original lenses had only one set of numbers, an no hole in the prongs. The front-most set of numbers are on all Nikkor lenses, the back set (between the prongs and the body) are visible in the viewfinder. The holes let more light iso that the numbers from F4 to F11 are easier to read.
Mar
9
comment What are the metal items on top of an older Nikon lens?
I'll keep my Nikon F until I die. The pro-level Nikons will mount the old lenses, but they were way out of my budget, and are frankly better than I am.
Mar
9
comment What are the metal items on top of an older Nikon lens?
Right, then they would not work on my beloved Nikon F.
Mar
9
comment What prime lens for taking portraits of my child with a Canon APS-C DSLR?
While I love my 50mm F1.4, the depth of field at F1.4 is tiny. Too tiny to keep a fast moving child in focus. Which is why I recommended the 40mm F2.8
Mar
7
comment How do I develop black and white film myself?
When @caleb talks about "turning on the light" he means a proper darkroom safe light. Almost all of the work in a darkroom has to be done in the dark, with only a safelight. Loading film into their tanks has to be done in the complete dark, no light of any kind.
Mar
7
comment How do I develop black and white film myself?
If you want to see the photos, you have to develop the film and then print enlargements. I loved printing enlargements, but over time I decided that developing film was not worth my time. I'd have a lab do the development and print a contact sheet.
Mar
4
comment Why my “action” shots are blurry even shooting on AF-C, is this a lens or camera limitation?
I've never seen a dog that couldn't outrun a person without raising any effort. So the OP needs a much faster shutter speed.
Mar
4
comment Why my “action” shots are blurry even shooting on AF-C, is this a lens or camera limitation?
Actually, lens stabilization does very little for sports shooting. It stabilizes the camera/lens combination. But for sports, its the subject that is moving.
Mar
2
comment Canon DSLR Lens Correction
Any modern desktop or laptop computer has hundreds (if not thousands) of times more processing power than any camera. That is why post-processing rocks.
Mar
1
comment How does the gray level in a target impact the true color after calibration
a couple hundred K of color shift is exactly the type of correction that I bought the ColorChecker to correct. With subtle colors, that is a huge difference in how it looks. I want a photo that shows the colors that I see on the wall at the time I take the photo. An accurate recording of what is there.
Mar
1
comment How does the gray level in a target impact the true color after calibration
Thank you @stan for documenting how to use this. X-rite should really hire you to explain their product.
Feb
28
comment How does the gray level in a target impact the true color after calibration
OK, here are the photos. All shots were taken at the same place with the same lighting, in maybe 3 minutes elapsed from first to last. flickr.com/photos/the_old_curmudgeon/sets/72157632879493705
Feb
26
comment How to handle existing gear if you start your own business from financial site?
You really need an accountant to help you set this up. Pay one who knows the laws and tax code in your state/location. Website registration is $12 a year. Don't worry about it.
Feb
25
comment What exactly is a “circular motion” when using a lens cleaning pen?
I can see three possibles: 1) run the pen around the lens, like grooves on a record, keeping the pen at a single orientation. In this, the pen will effectively twist 360 degrees as you complete circle. 2) run the pen like a record, but twist the pen as you go, so that it stays in the same position relative to the groove. This is like the needle/cartridge in a record player. 2) as #2, but rotate the pen the opposite direction, so it does a 720 degree rotation as you go around the lens. The problem I see with #2 is that if you have grit on the pen, it will stay in the same place each lap.
Feb
25
comment What lens should I purchase for newborn photography with the Canon T4i?
Image quality and that range and your budget are incompatible. You can get one good IQ lens and another cheap one to cover your range, but this is an overly constrained problem. I use my 17-55 F2.8 on my grandkid, but that is a $1200 lens itself.
Feb
24
comment What Nikon camera should be used in the high mountains
Batteries hate the cold. Technically they lose the ability to supply sufficient current at the needed voltage as they get cold, but for practical purposes they lose 90% or more of their capacity. Plan on many batteries, and consider carefully how you will change them when on the mountain with snow and blowing winds.
Feb
24
comment What Nikon camera should be used in the high mountains
I think this is an overly constrained problem. $1500 is simply not enough of a budget to get a body that is weather protected and two good lenses suitable for macro and landscape work. Further restricting it to Nikon only further pushes this out of a realistic question.
Feb
23
comment A good library-less photo manager for Mac?
What does your "photo manager" do if it doesn't manage the library? Do you mean a photo editor like Gimp or Photoshop? Lightroom will allow you to manage your own photos, but most people let it do the image managment and file placement.
Feb
21
comment What is the upgrade path for Nikon D300 with better low light sensitivity?
plus he'd need one of those $$$ 200mm F2.0
Feb
21
comment What is the upgrade path for Nikon D300 with better low light sensitivity?
His primary sport is volleyball. The obvious action happens at one of two places right at the net. He's the coach, so he has nearly complete access, but as coach, he also has limited time for photography.