wellinghall: (Olympus)
[personal profile] wellinghall
Fisheye: No known uses, except to illustrate fisheye effects in photo how-to books.

Ultra-wide rectilinears wider than 19mm: Occasional interiors. Also used to stump gearheads trying to find stuff to photograph with the things.


Ultra-wide-angle (19, 20, 21, or 24mm): One of the four of five essential lenses for pros, broadly useful for artists and accomplished amateurs. Used for landscapes, interiors, street shooting, crowd shots, etc. Also used by bored amateurs as the next thing to covet for purchase. Despite the ubiquity of this focal length, relatively few photographers are practiced enough or visually acute enough to use this type of lens effectively; lots more people own these than do good work with them. See Brian Bowers’ Leica books for a rare example of a scenic photographer who actually sees well with a 21mm.

Ultra-wide-angle zoom (wide end 20mm or wider): useful for when the photographer would like to carry one heavy lens instead of three light ones, or has a breezy, devil-may-care attitude towards flare effects. Secondary “CYA” lens for pros who aren’t great with wide angles in the first place. (Exceptions do exist.) Also sometimes paired with a fast 80-200mm zoom as a professional’s only two lenses.

Wide angles: Now that 24mm is more often lumped with 20mm and 35mm has become an alternative “normal” focal length, this class has contracted down to one fixed focal length, 28mm. Useful as a do-anything lens (especially for street and art photography, photojournalism, faux photojournalism, and environmental portraits) where a wide “look” is desired, and/or to complement a 50mm main lens, and/or for pressing into service in place of a super-wide when the photographer does not own same.

Shift lenses: Buildings. Used for the overcorrection of convergence caused by perspective.

Ditto, but with tilt: Ditto above, plus landscapes with tons of foreground and tables laden with food.

All-purpose 28-200mm zoom lenses: Bad snapshots. Also great for making five rolls of film last a whole year. All-purpose = no purpose.

Wide normal primes (35mm): Alternative normal. Often, the thing replaced by a zoom. Easiest focal length to shoot with. Best focal length for Leicas. Not really "wide" by today's standards, 35mm is an alternative normal. Leica M6, 35mm pre-ASPH., Ilford XP-2.

“Pancake” Tessar-types, usually 45mm: Good for lightening the burden of photographers who would rather not carry an SLR at all.

Normal/standard (50mm): Useful for taking photographs, if you have a thick skin. When used exclusively, classic “hair shirt” lens for disciplining oneself needlessly. Strangely, when in skilled hands, can mimic moderate wide angles as well as short telephotos. According to one far Eastern expert, lower yield of usable shots than 35mm lens, but higher yield of great shots. Second best focal length for a Leica.

Standard 55–58mm: Shows you use a really, really old camera.

Macros / micros: Flowers, bugs, eyeballs, eyelashes, small products, tchotchkes. Dew-covered spider webs, frost patterns on windowpanes. Great hobby lenses, as macro photographers are among the only happy photo enthusiasts. Also much utilized by photography buffs who like to test lenses.

Superfast normals (ƒ/1, ƒ/1.2): Used for people who like limited depth of field, as well as for people who like to complain about limited depth of field. Also, especially when aspherical elements are involved, an effective way to vaporize excess cash for almost no good reason.

Standard zooms (35-70mm, 28-105mm, 35-135mm, etc): Used for taking pictures in bright light—mainly snapshots, scenics, cars, travel pictures, semi-naked women, underexposed pictures, and pictures blasted by uncontrolled on-camera flash. Evidently very useful for clichés. Sometimes used to remove interchangeability feature from interchangeable-lens cameras.

Fast medium zooms: For pros, bread-and-butter lenses. For amateurs, often left at home rather than lugged around all day. If very expensive, big, and heavy, may be almost as good and almost as fast at any given focal length as cheap fixed primes. Good for making both hobbyists and their portrait subjects feel self-conscious.

Short teles (75, 77, 80, 85, 90, 100, or 105mm): Portraits, tight landscapes, headshots, beauty and glamor. In skilled hands, can be used for general and art photography, photojournalism. Essential.

135mm prime: Little owned, less used. Became a standard 35mm focal length when rangefinders were the main camera type because it’s the longest focal length that is feasible on a rangefinder. Now vestigial, like a male’s nipples.

Fast 180mm or 200mm prime: Longest general use lens for photojournalism. Sports, beauty, auto races, surveillance in film noire.

Slow 180mm or 200mm prime: Lightweight and easy to carry. May project a certain “image,” ie that you are poor or cheap.

Standard telephoto zoom (70 or 80 to 180, 200, or 210): Whether slow or fast, indispensable for most photographers, amateur or pro. Used for all kinds of action, activity, fashion, portrait, headshot, reportage, sports, wildlife, landscape, and nature photography. Covers all the telephoto range most photographers ever need, at least until they become afflicted by the terrible urge to photograph birds.

IS (Canon) or VR (Nikon) standard telephoto zoom: Same as above, but for photographers who drink lotsa coffee and/or do crank.

Fast 300mm: Fashion, catalog, runway, sports, nature, air shows. Important lens for pros, also for nature photographers. Tough for amateurs unless shooting surreptitious faces in crowds or critters. Status symbol. As fashion, looks grand when accessorizing a photo vest.

Super-telephoto zooms (to 300mm or more on long end): For adjusting FOV when standpoint is constrained. Replaces several heavy primes. Sometimes pressed into service by amateurs who have burr up ass about having all focal lengths “covered.”

400mm: Critters, sports, and birds. Landscapes, if you’re a nut. Also good for photographing football games when you don’t want the picture to show a dang thing about what’s going on.

500mm: Critters and birds. Money laundering: can be bought and sold to placate wife about questionable expenses. “But I sold one of my lenses to pay for it, honey, honest.”

600mm: Critters.

1200mm: No known uses.

From http://photo.net/mjohnston/column57/

Date: 2009-05-20 11:10 am (UTC)
emperor: (Default)
From: [personal profile] emperor
1200mm: conclusively proving ones penisincome is bigger than anyone else's

Date: 2009-05-20 11:31 am (UTC)
From: [identity profile] wellinghall.livejournal.com
Very true.

Date: 2009-05-20 11:17 am (UTC)
From: [identity profile] crazyscot.livejournal.com
600-1200mm would have their uses at air shows, in astrophotography and maybe in aerial photography. Now if only I could afford such ...

Date: 2009-05-20 11:31 am (UTC)
From: [identity profile] wellinghall.livejournal.com
But only if you're a weightlifter.

Date: 2009-05-20 11:32 am (UTC)
From: [identity profile] malaheed.livejournal.com
1200mm is almost useless for airshows due to the weight. Unless you are a power-weightlifter then any mortal has to use a mono ot tripod to stop their arms breaking under the weight of holding them up. Also, to get a jitter free image, you need to do 1/1200th of a second or faster on the shutter speed.

Astrophotography you are better off either putting in a webcam sensor or directly coupling the the SLR body to the telescope.

Date: 2009-05-20 11:39 am (UTC)
From: [identity profile] wellinghall.livejournal.com
I guess that even a monopod wouldn't do a very good job of keeping a 1200mm lens steady. You'd need a heavy-duty tripod, and still need to be a weightlifter to lift it out of your car and hump it to the viewpoint.

Date: 2009-05-20 12:38 pm (UTC)
From: [identity profile] philmophlegm.livejournal.com
Don't know much about photography, but know a bit about astronomy and by extension astrophotography. Most of the stuff you're going to want to photograph is very dim (nebulae and such), so you're going to need long exposures. And since the Earth rotates, if you're taking long exposures, you need to precisely move the camera as the Earth rotates. I think the standard thing to do for keen amateurs is to mount the telescope on an equatorial mount with a stardrive (an electric motor that moves at precisely the right speed) and, as you say, connect the (usually digital) SLR body to the bit of the telescope where the eyepiece normally would be using something called a t-mount.
Edited Date: 2009-05-20 12:39 pm (UTC)

Date: 2009-05-20 12:52 pm (UTC)
From: [identity profile] wellinghall.livejournal.com
From my reading of photo.net, that would seem to be the standard way.

Date: 2009-05-20 11:38 am (UTC)
From: [identity profile] malaheed.livejournal.com
Actually, best results I've had at an airshow were with a 135mm fast lens. Decent DOF and fast enough to capture the action and almost no softness in the image at all. Light enough that it's possible to pan and track the Red Arrows while they were doing the synchro pair crossing at a combined speed of about 1000mph.

Date: 2009-05-20 11:42 am (UTC)
From: [identity profile] wellinghall.livejournal.com
And with a sharp lens and slow film, you can then blow up the resulting image to capture the bit of the scene you're really interested in.

I've got an interesting shot of a Lancaster flying over a Napoleonic-era fort, where I've done just that; but alas, at the time, I wasn't using a good enough lens (or, I suspect, a fine-grained enough film), with the result that you can tell what it is but can't get enough detail.

Date: 2009-05-20 11:44 am (UTC)
From: [identity profile] malaheed.livejournal.com
But you could instead actually enhance the grain and make it larger, making the picture more impressionistic perhaps? Also, drop it down to b&W?

Date: 2009-05-20 11:45 am (UTC)
From: [identity profile] wellinghall.livejournal.com
I strongly suspect I've only got the print now, not the neg. But yes, it might give interesting results.

Date: 2009-05-20 11:49 am (UTC)
From: [identity profile] malaheed.livejournal.com
Can you scan it and put it up? Would be interested to see it.

Date: 2009-05-20 12:36 pm (UTC)
From: [identity profile] wellinghall.livejournal.com
Assuming I can find it!

Date: 2009-05-20 11:49 am (UTC)
From: [identity profile] malaheed.livejournal.com
Canon : 1200mm f/5.6L EF USM Autofocus Lens
Length. About 1meter
Weight. 15-16kg
Price. Built on demand. 18 month lead time. Second hand they go for $100,000

Canon (or possibly Nikon) once built a 3200mm lens for a private client in the Middle East. I suspect that was to allow the owner to take photos of people in New Zealand without leaving Dubai.

Date: 2009-05-20 12:37 pm (UTC)
From: [identity profile] wellinghall.livejournal.com
There's a fun WWI Biggles story about a super-tele German lens for aerial reconnaissance.

Date: 2009-05-22 01:00 pm (UTC)
From: [identity profile] davidcook.livejournal.com
I like it !
I've accumulated lenses from a fair number of those categories over the years, too, although I'm "fortunate" in being a Pentax user, because while extreme lenses of most types exist for Pentax (e.g. they've made 1000/1200/2000mm lenses over the years), they're very hard to find and hideously expensive even for lenses, so I've never had to worry about "accidentally" acquiring any of them ...

Date: 2009-05-22 01:32 pm (UTC)
From: [identity profile] wellinghall.livejournal.com
I thought you might appreciate it :-)

And - 2000mm? Wow!

Date: 2009-05-22 02:28 pm (UTC)
From: [identity profile] davidcook.livejournal.com
Yup, there are some details here (http://www.bdimitrov.de/kmp/lenses/primes/extreme-tele/M2000f13.5.html) - 8kg ! 530mm long ! Don't think anyone will be hand-holding that in a hurry.
The 1200 f/8 (http://www.bdimitrov.de/kmp/lenses/primes/extreme-tele/A1200f8.html) is pretty impressive too, also over 8kg, and longer than the 2000. Scary stuff, and I can't imagine what they'd be used for - or rather, you may as well use a proper telescope at that sort of focal length.

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