The Pentax Zoom-70 (aka the IQZoom) from circa 1986 is the inaugural model of the long-running IQZoom/Espio series of high-end zoom point-and-shoots.
This camera was given a glowing review in the March 20, 1987 Washington Post by directory of photography, Carl Kramer:
THIS WEEK I'd like to tell you about a new and very special camera, the Pentax IQZoom. Of all the compact cameras I've tested in the past 18 months, this is the one I like best by far. Three of us have put a lot of film through the IQZoom over the past few months: 16 rolls of negative color, five rolls of black and white and five of transparency. ... I've taken pictures while sight-seeing, in my back yard and at business, civic and political meetings. I was delighted with the results -- even snow scenes, day or night, came out fine. .... The suggested manufacturer's price for the IQZoom is about $275; it's worth every cent!
The camera requires either 4 ordinary AAA alkaline batteries (not included) or a CR-P2 lithium battery (available as an option). For most people we recommend just using ordinary AAA batteries, as they're more economical and we couldn't detect much difference in flash recharge time. The optional date imprinting mode requires a CR2025 lithium battery but there's little point to using it as the calendar only goes up to 2009.
Condition notes The camera's functions were tested with batteries and a roll of film (the film was not developed). All modes are working correctly; we verified the camera's lens and film plane focus accuracy with an autocollimator. The camera and included case are in very good cosmetic condition (see photos).
Type: 35-mm fully-automatic leaf-shutter camera with built-in zoom lens and auto flash. (Auto focusing, auto exposure control, auto film-speed setting, auto-film loading, auto film winding, auto film rewinding, and auto flash control.)
Film: 35-mm perforated cartridge DX-coded film with ISO rating from 50 to 1600. 24 x 36 mm format.
Lens: Pentax power zoom 35 ~ 70 mm f/3.5-6.7, 8 elements in 7 groups. 63° ~ 34.5° angle of view.
Autofocus range: one meter to infinity; 0.6 to one meter at MACRO (1/8 magnification).
Focusing system: Pentax infrared active auto focusing.
Exposure control: Programmed auto-exposure control from EV 9 ~ 15 in WIDE setting, from EV 11 ~ 17 in TELE and MACRO settings at ISO 100 with CdS-cell metering.
Viewfinder: Zoom finder with albada bright frame. Automatic parallax-compensation mechanism by prism at MACRO setting. 82% field of view. Magnification: 0.35X at WIDE setting, 0.64X at TELE setting. -1 diopter.
Viewfinder information: Picture-area frame, parallax-correction frame and autofocus spot.
Shutter: Programmed-AE, between-the-lens shutter with speeds from approx. 1/250 ~ 1/40 sec. Electro-magnetic shutter release.
Exposure compensation: +2EV.
Meter switch: Shutter-release button.
Film loading: Auto film loading.
Film winding: Auto film winding with LCD winding indication.
Film rewinding: Auto film rewinding at the end of roll with LCD rewinding indication. Rewind operation stops when rewind is over. Provision for rewinding film in mid-roll.
Self-timer: 10-second-delay self-timer with LED indication.
Flash: Built-in auto discharge zoom flash.
Flash recycle time: Approx. 3 sec. with lithium battery pack or alkaline batteries (at normal temperatures and humidity, and at the earlier stage of use).
Power source: One 6V lithium battery pack (DL-223A or BR-P2) or four "AAA"-size alkaline batteries.
Battery life: Approx. 22 rolls of 24-exposure film with fresh lithium battery pack, or approx. 14 rolls of
24-exposure film with fresh alkaline batteries (at normal temperatures and humidity, and when flash photography and non-flash shooting are made on 50-50 basis).
Size & weight: 138(W) x 74.5(H) x 62.5(D)mm (5.4” x 2.9" x 2.4"); 465 grams (16.3 oz.) without battery.
Data imprinting mode: "Year-Month-Day," "Month-Day-Year," "Day-Month-Year," "Day-Hour-Minute," "A- or P-Hour: Minute" and "OFF" (blank).
Power source: Lithium battery (CR-2025) for clock and data display; camera's battery also serves for data imprinting.
Size & weight: 138(W) x 74.5(H) x 64.5(D)mm (5.4” x 2.9" x 2.5"); 480 grams (16.8 oz.) without battery.
Accessories for both modes: Strap (standard) and soft case (optional).