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I have a survey basically of video screen size popularity, at Image resolution for the video monitor screen There was a previous error in it, causing some entries to be recorded several percent smaller than they were (CSS pixel ratio, mostly smart phones). I have fixed it, and reset it, so...

You're kidding yourself. Your Wikipedia link about macro just converts focal length to magnification (as they clearly show). There is no magnification without focal length. 1:1 is a magnification, and it is like Wikipedia says: "more convenient" for macro. It is not different rules, its...

I posted this elsewhere, and it seemed to have some appeal, so I thought it ought to go here too. Second pass, added a bit. t.5 and t.1 are common terms and methods for measuring flash duration. Flashes have a rapid strong peak of light, and then slowly fades away (relatively slowly, a few...

One more review posted at Review of the Neewer VK750 II Speedlight This is the Neewer VK750 II speedlight. $56 seems an amazing price for such a lot of flash. A few less dollars than a Yongnuo YN560-II, but it does TTL too. And very well at that. I was surprised how often it seemed to get it...

I posted this Neewer NW-985N speedlight review at Review of the Neewer NW985N Speedlight It is an inexpensive flash ($65 Amazon), fully powered, fully featured, even HSS and Commander Remote. My opinion is its HSS does not work, and Remote mode with TTL Commander is a couple of stops deficient...

I'd like to ask a favor from anyone with a current model Nikon flash (SB-700 or SB-910) and a hot shoe extension cord, such as old SC-17, or new SC-28 or SC-29. Any of the cords, it doesn't matter. Hearing from both flash models would be good. Check out the effect at Review of the Yongnuo...

Welcome to the forum. I don't know about your source, but I do think that's correct, three digits can only count to 999. I think all models are that way. But the number of shots (say two per interval) can of course be greater. Here is a picture from the D800 manual: The top LCD display...

I just put a new Guide Number calculator on my page about Guide Number, at Understanding Guide Numbers It does the math to convert one Guide number (at full power level) at some ISO, to a new guide number at another ISO and/or another power level. It assumes still the same zoom (same angular...

Ever need to plan your shoot and lens to cover a certain scene area? Like a portrait that covers 2x3 feet of subject? Calculator for Lens Field of View is a handy Field of View calculator. It shows Field of View (dimensional and angular) for a specified lens and sensor. It has modes for...

Ever need to plan your shoot to cover a specific area? Like a portrait to cover a 2x3 foot area? Field of View (FOV) Calculator is a handy calculator that can show the field of view that the lens and sensor will cover at a certain distance. You will need to know either sensor dimensions (in...

Photo of elderly man eating lunch with picture of deceased wife goes viral | Fox News

FWIW, they say Tamron 150-600mm Nikon is in stock, for regular price, and I just ordered one (B&H still no go at nearly 4 months). Says it will ship today. Tamron SP AF150-600mm F/5-6.3 Di LD IF Telephoto Zoom Lens for Nikon (FREE GROUND SHIPPING) - Monoprice.com Monoprice has toggled in/out...

We hear way too much about NOT using f/16 or f/22 because of diffraction limits due to our sensors pixel size. Sure, f/8 is a great general plan, do it when you can. Nevertheless, there are obviously many times when f/16 or f/22, and maybe f/32, can heroically and drastically help our depth...

Now and then, every couple of weeks maybe, I see something like this here... In main forum menu (where I am currently seeing a BestBuy ad for Sony 4K), and I click a forum link (don't recall which one now- was sort of a surprise) - I get a large popup, this time addressed as ad124m.adk2.net...

Best Lenses For Video - Nikon Cinema Nikon posted this to be about lenses for video, but the groupings seem a good discussion of lenses for general purposes too. It does not mention DX or macro lenses, but the rest are here. I liked the article. Now of course, I do tend to argue with...

In the same sense that assignments of birds and flowers are pictures of those subjects...

Organization of these flash details has always seemed a tough job. There are a few situations to cover. I added this new section to Four Flash Photography Basics we must know - Flash pictures are Double Exposures which I hope covers some high spots briefly. I worry it may be too...

I'm not sure about how the duck colors match up..

OK, but that's not what the test says. Most servers I was concerned about do test safe, and I guess I don't have any personal data here, but the test says this: (FYI)

FYI: This site: Test your server for Heartbleed (CVE-2014-0160) says nikonites.com is still vulnerable to the heartbleed security bug? Article is here: How to protect yourself from the 'Heartbleed' bug - CNET