Time to be with your loved ones

Time to be with loved ones

by sat

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5,501 reputation
615
bio website pfarrell.com
location outside Washington DC
age 63
visits member for 2 years, 2 months
seen 2 days ago

Programming since punched cards


Jan
12
comment Technical book about exposure
You are of course entitled to think whatever you like. I believe that exposure is a simple concept. Its just arithmetic. If it wasn't simple, all the photographers in pre-computer times would have not been able to take any photos.
Jan
11
comment Have I broken my Canon 28-135mm lens after DIY repair?
I'm sure you have just missed a "centering shim" or adjustment. The bad news is that sending it off to Canon Service will cost more than the lens is worth. Its not a bad lens, but I've seen the current price on Craigslist as about $200 in good to excellent condition.
Jan
10
comment Are there any reasons to use film cameras anymore?
While color film was fairly expensive, B+W was not, if you bulk loaded it and did your own darkroom work. It did take a while, probably 6 hours or so typically, between the time I took photos and when I could look at them.
Jan
9
comment How to stop a high F number from appearing blurry?
The diffraction limit is why "mega pixel wars" are so stupid. Marketing folks love to brag about how many mega-pixels they have, but that does not mean that they take better pictures. We want better pixels, not more of them. When the pixels get small, they have their own diffraction issues, in addition to the issues that @mattdm talks about for the lens.
Jan
9
comment Can a DSLR function in an environment with high g-forces?
I would expect that holding the camera at 6-10G is next to impossible. The good news is that even a fighter doesn't do that for very long.
Jan
9
comment Practicality of using a telescope as a super telephoto lens?
@paul, are they really zooms? or just a different type of 'scope for different objects to view. I bet that they use two "prime" scopes for the two use cases.
Jan
9
comment What is your stance when asked to shoot a wedding for friends or family?
Its a ton of work and you can't have any fun. Its one thing to be Uncle Pat who happens to have a camera, its quite another to be the official recorder of a once-in-a-lifetime event.
Jan
8
comment What photo editing softwares support MacBook Pro's Retina display?
I agree, DPP is not really comparable. Back when Lightroom was many hundreds of dollars, I tried to go cheap. But Lightroom is really worth it, IMHO, now that the price is lower. You can sometimes see specials were its under $100.
Jan
7
comment How to become a camera dealer for Canon/Nikon?
@imre, interesting speculation. I don't think the difference between wholesale to prices at places such as B+H or Adorama would be worth it. I could be wrong. I know in other businesses, such as the motor scooter business where I own a store, the franchise/brand has minimum yearly sales requirements to keep the deal. So you won't move enough for yourself to keep the deal.
Jan
6
comment How to become a camera dealer for Canon/Nikon?
May I ask why you want to sell new cameras? The retail side of camera sales are under huge pressure, local camera stores have been closing for years. Ritz/Wolf went bankrupt. The margins are very thin, and you have to compete with both Amazon and places like B+H and Adorama. Far too many people go to a local store to touch the camera and ask questions, and then go online because the price is a few dollars cheaper. It hard to make a buck at it. Most stores make all of their profit on accessories, not the bodies or lenses.
Jan
5
comment What Canon/Tamron/Sigma standard zoom lens to choose?
I love my 17-55 F2.8. It was about $1100, but its my main daily lens. I totally love it. I also picked up a 55-250 for under $100 on craigslist, which covers the long lengths. So far, I'm happy with the inexpensive 55-250, but of course I lust for something much faster.
Jan
4
comment Are there any DSLRs with large controls that don’t need good hand-eye coordination to use?
@ian, sounds like a fun effort, a bit of metal work or welding will create a table stand for the laptop/tablet. They probably don't have Home Depots in the UK. Have you checked the wheelchair users' forums for information on tables and laptop stands?
Jan
4
comment Are there any DSLRs with large controls that don’t need good hand-eye coordination to use?
Canon's DPP (free with any Canon DSLR) has full control when tethering. While most folks run it on a laptop, there is no reason it or a similar APP can't be written for any large tablet. The standard tripod mount screw is a 1/4"-20, you can get the basic bolts at any hardware store, Home Depot, etc. Would be trivial to setup a tripod mount on a chair. Maybe even use a monopod. With a bit of hacking, you could use an Arduino to control servors based on a joystick, this could allow independent pointing of the camera in 1, 2, or even 3 dimensions relative to the chair Sounds like a fun project
Jan
3
comment How do I make sure I keep rights to photos I take for a band?
Again, IANAL, and I agree that registration is not required. But it does make a legal case a lot easier. It also makes the case easier when you have copyright text in the meta data.
Jan
1
comment What is the little metal piece attached to the aperture ring in some Zeiss lenses?
For sure, the external aperture coupling ring from the Nikon F. (I think it actually predated the F). I have six or eight Nikkor leses from this era. Sadly, many newer Nikon bodies will not mount these lenses. The F-mount is the same, but the tang has interference with the pentaprism on newer bodies.
Jan
1
comment What is a kit lens?
I think you folks are picking nits. An L-series lens is hardly a "kit lens" even if its sometimes bundled with a $3000 body. In the linked article, they are talking about entry level cameras and cheap $100 kit lens setups.
Dec
31
comment How can I take a photo with everything in focus with my DSLR?
If you are shooting in bright sunlight (often for landscapes) then you dont' HAVE to have a tripod. You simply have to use a fast enough shutter speed to keep the camera shake out. The old Brownie and Instamatic cameras were always setup this way. They used a small F-stop (say F11) to get a very large depth of field. Everything from 4 feet to infinity was in focus.
Dec
29
comment How can I get Canon 6D's RAW format to work in OS X Lion?
I expect that there will be an update for the 6D "real soon now" from Apple. Of course RSN is impossible to predict or connect to a real calendar.
Dec
29
comment Why am I limited to 1/100th of a second or slower with 5D Mark II, 600EX-RT, and ST-E3-RT?
@pk, ah, I see the new T4i is only rated at 1/200.
Dec
29
comment Is this Canon 70-200 F/2.8 IS II strap/sling attachment safe?
This gives me the shudders. That is a very expensive body/lens combo. Its probably safe, the lens tripod mount is designed for both the body and lens. But it sure feels funny to me.