By this I mean inconsistent focus sometimes its spot on other times it is way out this happened on my K-5 mk1 less so on the K-5IIs. 4 for the pentax.
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Best Buy Sigma 17 70mm F 2 8 4 0 Dc Macro Hsm Zoom Lens For Pentax K10d Black 884109 Pentax Macro Lens Zoom Lens
The old Sigma 17-70mm F28-45 DC Macro has long been a favourite of many Pentax users as evidenced by the user reviews in our lens database and forum.
Pentax 17 70. Pentaxs SMCP-DA 17-70 f4 AL IF SDM lens is the second tier standard zoom in Pentaxs DA lineup right behind the DA 16-50 f28. The DA 17-70mm f4 features the new near-silent Supersonic ultrasonic Dynamic Motor SDM AF. 17-70mm F28-4 DC Macro OS.
Picture quality is consistently sharp at the center and at the. With a 17-70 mm f40 lens such as the Pentax SMC DA SDM IF AL lens one can take both extreme wide-angle and medium telephoto shots with a wide depth of field. The Pentax 17-70mm is slightly narrower than the Sigma lenses although its heaver than the Sigma v1 and longer than the v2.
- The Pentax 17-70 is a fine lens but has focus issues with some camera bodies. Unlike the DA 16-50mm f28 SDM it does not offer the old AF drive screw for legacy DSLR support but thats forgivable by now. With a versatile focal length of 17-70 this lightweight DSLR lens is the perfect all-purpose lens for any level of photographer.
The Pentax Super Protect SP coating on the front element has been optimized to repel dust water and grease. It has seven aperture blades. The first of the two Sigma lenses the 17-70mm F28-45 DC Macro was launched in 2006.
The PENTAX K-70 has a compact body for easy carry-along to any outdoor shooting. The sigma also focuses closer and Im tempted by the f28 and esp. Personally I dont think the extra 400 is worth the possible marginal improvement.
The Pentax 17-70mm ƒ4 is a meaty lens weighing in at just over a pound 171 oz 485 grams but balancing nicely on both K10D and K-7 test bodies. One is the Pentax DA 17-70 f4 with sdm and the other is the sigma 17-70 f28-45. Found under an old limb that had fallen years ago.
I believe the HSM OS version of the Sigma is around 500 - still 200 cheaper than the Pentax. 17-70mm F28-4 DC Macro OS HSM C Shutter. Whats in the box.
The front element does not rotate when focusing facilitating the use of polarizers. The pentax is smaller though. Its outstanding weather-resistant performance and enormous imaging power combining true-to-life image description and high-sensitivity shooting make it extremely reliable even in most demanding shooting conditions.
All three lenses are generally well regarded in the Pentax community. The sigma is about 100 cheaper and only f45 at 70 vs. Its focal length is equivalent to approximately 1 inch to 413 inches in terms of 35 mm APS.
As such its the best choice for those who dont want the much pricier and heavier DA 16-50. L-ION BATTERY D-LI109 U. Compared to the newer Sigma 17-70mm F28-4 DC Macro OS HSM from 2010 its got a.
It offers a convenient zoom range a relatively fast maximum aperture and good macro capabilities although it is not a true macro lens. The Pentax K-70 is the latest DSLR offering from Pentax and its well-rounded feature set and rugged Weather-resistant construction are sure to please existing k-mount users as well as. It uses a more moderate filter size at 67mm.
This Pentax SMC DA SDM IF AL lens is a solid rotary zoom Pentax camera lens. -- hide signature --. Here in Australia the Pentax 17-70 is currently around 700 while you can still buy the Sigma 17-70 non HSM for less than 300.
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