The longest zoom lens is the MF Nikkor 1200-1700mm f/5.6-8.0 P ED IF.
Weighing 16kg and measuring 880mm in an overall length and there is just no comparing optic to match this lense in its basic spec - that is not exaggerating to replicate a famous slogan from Saddam Hussein to quote here, huh ? Since most of us have not and rarely will have any chance to see this lense in its physical form (guarantee will make your eye-brows raised straight up !), so let us don't waste time talk about how well it can perform optically or how smooth the zooming action is blah blah blah etc. .. but rather, simply based on its spec sheet, we will confine the discussion on other aspects relating to its viability, possibilities,development history and future expectation.
This lens is not for the ordinary. Not even professionals in their own capacity because pros usually have the ability to adjust themselves and reverting any unfavorable photographic situations (added the fact, most successful pros with conventional wisdom in the profession are usually also smart in financial management). So, only large and established media/press houses and/or governmental agencies can afford such kind of investment (I don't entirely write off people who has nothing to do such as those super rich individual(s) who may be curiously want to record on film on board his private yacht who is with his recent "identified target(s)" on another yacht a mile away from his etc...). Joke aside, some proper applications of this spectacular super-tele zoom could be on scientific research, wildlife observations, solar or lunar photography, surveillance, headlined political events, major international sport meets and other kinds of situation where they are inaccessible for photographers to close in during shooting such as reporting for rocket launching, rioting, air strike bombing in a possible war (again ?) etc.
Specifications:
IMPORTANT: As information relates to this lense is scarce and hard to acquire through normal means, the creator of this site cannot ensure 100% accuracy in its content posted herein. If you have any other helpful resources (images, press-kit original announcements etc....) pertaining to this rare Nikkor zoom (or for that matter, any interesting Nikkor optic), please mail me. Please refer to manufacturer for further detail for any potential purchasing or acquisition.
Focal length/Aperture: 1200-1700mm f/5.6~f/8.0
Lens Coupling: Ai-S
Lens construction: 18 elements in 13 groups (3 x EDs)
Picture angle: 2°-1°30'; Diaphragm: Automatic. Built-in CPU
Aperture scale: f/5.6 ~ f/22 on both standard and aperture-direct-readout scale
Focusing and zooming control: via dual rings. Two removable quick zooming handles provided. Dual focusing/distance indexes provided: Orange (1700mm)
and Green (1200mm).
Exposure measurement: Via full aperture method; meter coupling ridge NOT provided. CPU integrated for Matrix Metering with applicable Nikon SLRs.
Distance scale: Graduated in meters and feet from 10m* (35ft.) to infinity
Focal Length Markings: 1200mm (green), 1700mm (orange).
Depth of Field Scales: Orange for f/22; Attachment size: 52mm rear drop-in
Tripod Mount: Mounting Collar Supplied; Weight: 16,000g
Dimensions: 237mm dia. x 880mm long (overall); Filters:52mm rear drop in
Front lens cap: Slip on type; Lens hood: Built-in
Tripod mounting/carrying: Via socket in a Fixed tripod mounting collar. Handle built-in on top.
Lens case: CT-1217 metal case supplied.; Usable Teleconverter(s): Not advisable;
Note: Serial number for this Ai-S ONLY Zoom-Nikkor lense was believed
to have been started from 200001.
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