Pentax Optio 750z Review
By Movable Type Admin
Features & Controls
The Optio750Z features a 5X Pentax smc (37.5-187.5mm in the 35mm format) f/2.8-4.6 all- glass aspherical zoom lens. When the camera is powered down the lens is retracted inside of the body and a built in shutter closes to completely protect the lens. This is a high-quality lens constructed of 9 elements in 7 groups with 2 aspherical elements and coated to reduce light flaring and aberations.
Autofocusing precision and speed have been enhanced by the incorporation of hybrid AF. Combining TTL contrast detection with an external passive sensor, it allows the photographer to choose from Wide AF, Spot AF and 11-point area selectable AF, and also features an auxiliary AF-assist lamp to achieve the best possible results when shooting in low light.
The focusing range is 1.97 ft (0.6m) to infinity in normal mode,
macro coverage is from 5.9 inches (0.15 m) to 2.13 ft (0.65m) and the
super macro coverage is from 0.79 inches (0.02m) to 2.13 feet (0.65m) at 7.8mm.
Manual focus is available from 0.79 inches (0.02m) to infinity.
The built in flash offers Auto, Flash-Off, Flash-On, Auto + red-eye reduction, Flash-On +
red-eye reduction. Flash range is approx. 1.31ft - 17.1ft (0.4m - 5.2m) (7.8mm at ISO
auto) and approx. 0.5ft - 10.5ft (0.15m - 3.2m) (39mm at ISO auto). You can select rear-
curtain (flash fires before shutter closes) when in Auto or Flash-On mode,
front-curtain mode (flash fires as soon as shutter opens) is the default.
You can frame your pictures with the color LCD or to save precious battery
power you can use the optical finder. This is a coupled viewfinder with
approx. 87% coverage and dioptric adjustment. Next to the
finder are two LEDs that indicate the flash and focus status.
On top is the On/Off button and the combination Mode Dial, Front Lever and Shutter Release. The Mode Dial has positions for: Program AE, Aperture priority, Shutter priority, Metered manual, USER (one of three user-selectable setups), Digital spotmeter, Voice recording, Movie, Digital filter, 3D image, Panorama assist and PICTure (12 programmed scene modes.) The Front Lever is used to adjust the exposure compensation (±2.0EV in 1/3EV steps) except when in Manual mode.
See the next page for more
information about the various exposure modes.
Across the top on the back is the Flash mode button (image Protect in playback), Drive mode button (Single, Continuous, Selftimer, Auto Bracket, Interval, Multiple, Remote Control) it's the DPOF button in playback. Focus mode (Normal AF, Macro, Super Macro, Infinity, Manual Focus, Focusing Area) it's image Delete in playback. The zoom lens control rocker switch, it also adjusts focus distance when in manual focus mode and serves as the Index and Enlarge buttons in playback.
The "blue arrow" button switches the camera into playback mode. The "Fn" button displays
the Function Guide screen, use the 4-way controller to navigate the options.
The MENU button calls up and dismisses the menu screens.
The 4-way controller lets you navigate menus and select images during playback, in
record mode it's used to change aperture, shutter speed, PICT mode and Fn menu
selections depending on the chosen exposure mode.
The center OK button accepts menu selections and is used as a Display button in record
mode to turn the color LCD on/off and control the amount of information displayed on it.
The Optio750Z features a 1.8 inch, TFT color LCD - with 134,000 pixels and a realtime
histogram display. This is a fully articulated LCD that swivels 180° horizontally and
rotates 270° vertically and has 100% coverage.
It can be swung around to the front and used for self-portraits,
or it can be closed facing inwards to protect the screen when not in use.
The I/O ports: AV Out handles monaural audio and video (NTSC or PAL selectable) to connect to a TV set with the supplied cable.
The DIGITAL port connects USB to the computer for image download or for Direct printing to any PictBridge compatible printer.
The DC INput jack is for an optional AC power supply.
Images, movies and sound recordings are stored on removeable Secure Digital (SD) flash
memory cards. Pentax includes a 16MB SD card so the first thing you need is a
higher capacity SD card. If you plan on capturing a lot of 7-megapixel size images
I recommend the
512MB Sandisk Ultra II card as shown here, it's fast and spacious.
Approx. Storage Capacity w/64MB SD
The Optio750Z is powered by the supplied D-LI7 3.7v 1800mAh Li-ion rechargeable battery pack. Pentax claims you can capture approx. 245 shots using the flash 50% of the time (standard CIPA testing standards), and 270 minutes of continuous playback time.
The included Pentax D-BC7 charger requires about 180 minutes to replenish a fully discharged battery pack. The Optio750Z can also be powered by the optional Pentax D-AC7 AC adapter for continuous use.
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