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Overview | |
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Type | Digital single-lens reflex camera |
Lens | |
Lens | Interchangeable Pentax KAF2 mount compatible with Pentax auto-aperture lenses and SDM lenses; older lenses supported in stop-down metering mode. |
Sensor/medium | |
Sensor | 23.6 x 15.8 mm APS-C CMOS image sensor with a primary color filter |
Maximum resolution | 12.4 megapixels |
Film speed | Auto: 200–12800 (1, 1/2, 1/3 EV steps), up to 1600 in Bulb, expand to 100–25600 Manual: 200–12800 (1, 1/2, 1/3 EV steps), up to 1600 in Bulb, expand to 100–25600 |
Recording medium | SD, SDHC, SDXC |
Focusing | |
Focus areas | 11 AF points, 9 of them cross-type |
Exposure/metering | |
Exposure bracketing | +/- up to 3 stops in 1/2 or 1/3-stop increments for three frames |
Exposure modes | Full Auto, Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Flash Off, SCN (allows selecting Night Scene, Surf & Snow, Food, Sunset, Stage Lighting, Night Snap, Night Scene HDR, Kids, Pet, Candlelight, Museum), M (Manual), Av (Aperture Priority), Tv (Shutter Priority), Sv (Sensitivity Priority), P (Program), Movie; when shooting in Live View, Full Auto may select an additional Blue Sky mode |
Exposure metering | TTL open-aperture metering with choice of: 16-segment, Center-weighted & Spot meter. Sensitivity range: EV 1–21.5 (ISO 200, 50 mm f/1.4) |
Metering modes | Multi-segment, Center-weighted, Spot |
Shutter | |
Shutter speed range | 1/6000 sec – 30 sec, Bulb |
Continuous shooting | 6 frames per second for 13 RAW or 30 JPEG frames[1] |
Viewfinder | |
Viewfinder | Eye-level pentamirror SLR, 96% coverage, 0.56x magnification |
Image processing | |
White balance | Auto, daylight, Shade, Cloudy, Fluorescent light, Tungsten light, Flash, Color Temperature Enhancement, Manual |
General | |
LCD screen | 3.0" TFT color LCD monitor with adjustable brightness. Resolution: 921,000 dots |
Battery | Rechargeable Li-Ion battery D-LI109, AA Battery Holder D-BH109 (optional) for 4× AA batteries |
Dimensions | 125 x 97 x 68 mm |
Weight | 595 g (21.0 oz) with battery |
Made in | Philippines |
The Pentax K-r is a 12.4-megapixel digital single-lens reflex camera, announced on September 9, 2010,[2] and replaced the K-x in Pentax' line-up, with which it shares many features. The K-r is available in three body colors (black, white and red) in North America, with other colors available only in the Japanese market. The K-r introduces a new SAFOX IX autofocus system and has a 3-inch display. The image quality of Pentax K-r and K-x is identical,[3][4] but colour fidelity in JPEG output has been increased.[5] The K-r has been improved over the K-x in other areas, such as the K-r showing the active focus point in the viewfinder when the shutter button is half-pressed, the K-r offering the joint second-widest ISO range in the Pentax line-up along with K-30—100-25600 in extended mode, which only the K-5 exceeds (K-x: 12800 in extended mode), having the joint second-fastest continuous shooting (6.0 fps) of current Pentax DSLRs (same as the K-30), and using rechargeable battery Li-Ion D-LI109 as standard, but having the ability to use 4 × AA batteries with optional battery holder (the K-x uses AA batteries exclusively).[3] The K-r also has a slightly larger, and much higher resolving display at 921,000 pixels vs. the K-x's 230,000.
HDR (high dynamic range) capture
[edit]As in the K-x, the user can choose to have the camera take three images at different exposures and have them combined into a high dynamic range JPEG image. In contrast to its predecessor, the Pentax K-r offers the option to auto-align the images.[6]
References
[edit]- ^ "Pentax K-r Review - Performance".
- ^ "K-r Black". Pentax Imaging. Archived from the original on 2011-10-09. Retrieved 2010-09-09.
- ^ a b "Pentax K-r Review". Retrieved May 1, 2012.
- ^ "Sensors Database - DxOMark".
- ^ "Pentax K-r Review - Image Quality".
- ^ "Steve's Conclusion - Steve's Digicams".
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction