カテゴリ:Unclassified [ 11時04分]


Pentax Shutter Release

pentax shutter release

    shutter release
  • The button on a camera that is pressed to make the shutter open

  • The button you press to take the picture. Often half pressing the Shutter Release activates the autofocus, auto exposure and vibration reduction, and a full press is required to actually take the picture.

  • The mechanism, usually a button on the top of the camera, that activates the shutter to expose the film.

  • a type of lens that is extremely thin and light. It has used the highest index of refraction, at 1.67.

  • A japaneese optical company involved in photographic manufacturing.

  • A camera manufacturer.

Pentax Asahi Spotmatic

Pentax Asahi Spotmatic

Asahi Pentax Spotmatic "Honeywell" Edition

- 35mm single-lens reflex with built-in TTL light meter.
- Standard Lenses: SMC Takumar 50mm f/1.4 or 55mm f/1.8 with fully automatic
- Distance scale: 0.45m (1.5 feet) to infinity.
- Filter size: 49mm
- Shutter: Focal plane shutter.
- Speeds: B, 1-1/1000 sec.
- Film speed (ASA) setting dial and window on shutter speed dial.
- Built-in self-timer releases shutter in 6-12 seconds. Shutter button lock provided.
- Viewfinder: Eye-level pentaprism finder with Fresnel lens + microprism.
0.89x magnification with 50mm lens. -0.1 dioptry. 93% field of view.
- Focusing: Turn the distance scale ring until the subject image in the viewfinder
comes into sharp focus.
- Minimum focus distance: 0.45m (1.5 feet) (With 50/55mm lenses)
- Reflex Mirror: Instant Return Type with special shock absorbers for minimum
- Film Advance: Ratchet type rapid wind lever (for film advance and shutter cocking).
10° pre-advance and 160° advancing angle.
- "Cocked" Indicator: A red disk appears in a small window along-side the
shutter release button when the shutter is cocked, and blacks out when it is
- Film Exposure Counter: Automatic re-set type
- Exposure Meter: TTL CdS meter measures the average brightness of the ground
glass, and couples directly to the shutter and film speed settings. Film speed
(ASA) setting ranges from 20 to 3200 (LV3 -18 for ASA 100 film with 50mm lens.)
Meter is powered with a mercury battery.
- Dimension: width 143mm (5.6") x height 93mm (3.66") x thickness
91mm (3.6")
- Weight: 894g (1 lb. 13 oz.) with 50mm f/1.4 lens. Body alone: 642 grams (1 lb, 5 oz.)

I use this with a Takumar 55mm Lens f/1.4 Screw type mount

Pentax Spotmatic SP IIa with Super-Multi-Coated Takumar 50mm f/1.4 Lens

Pentax Spotmatic SP IIa with Super-Multi-Coated Takumar 50mm f/1.4 Lens

This is an M42 screw mount SLR made by Pentax (then Asahi Optical Co.), but branded by Honeywell. Made sometime in the early 1970's. As a (now-useless) speciality, this version has a Strobo-Eye flash meter for use with certain flashes.

Shutter speeds: 1s-1/1000s, B. Self-timer.
Flash sync: 1/60s (X-sync hotshoe, X- and FP-sync terminals)
Microprism spot in viewfinder, which is bright and large. I prefer a split-prism, though, and the viewfinder in Fujica ST-701 is slightly brighter still.

Stopped-down metering with match-needle display.
Battery: PX400 (1.35v), also fits modern SR54 (1.55v, but voltage difference apparently has no effect on meter).

Light seals on these cameras will almost certainly need replacing, as with many other vintage cameras. I've replaced the ones in mine myself with good results.

pentax shutter release

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