Customer Reviews
Benefits
Sharp throughout the zoom range, including open, high, 5.6, is simply incredible
Versatile (90-375 mm equivalent full frame, close enough to 100-400 mm)
Relatively compact
Full-time required
Tripod with removable media
Disadvantages:
No zoom lock, could creep.
Some softness on one side of the frame 200-250mm f / 4 (rarely visible above f/4.5)
Tripod with removable media
Verdict
Superb goal is worth thethe asking price. The image quality and bokeh is in league with most triggers in the same range and aperture. Who should buy this? Anyone who needs an extra-strong, sport, wildlife or the general objective lens of f / 4 at end of period.
Review:
The lens is superb. MDS is the emphasis seems quiet and reliable with my K-7. Go to its target and stops. It is not very fast but not slow either. It seems to work quite well for some birds in flight and monitor other emphasis continuesactivities. If you use screws focus with this lens, is strong enough to be typical of other DA * lenses screw drive gear.
The sharpness of the lens never ceases to amaze me. Zoom to see 100% and the pixels are always clear, even on my K-7, which is 14.6 MP. It seems more than about 5.6, but it's very good wide open. The behavior is a bit 'as 70-200mm f / 4 lenses in this sense. As this internal focus, the focal length is measured at infinity. Seemssignificantly lower than at home almost all so typical of glasses. Unlike some economic objectives that the target does not disappoint for distant subjects.
The aim is to target someone who is accustomed to a 100-400mm for full frame. It has a tripod, and speaking of which, at the foot of the tripod is easily removable if you are in (the ring is the lens), but I like to use the leg as a handle When He shot a balance of Nice. Thestill ring every 90 degrees so it is easier to rotate 90 degrees. My only word of warning is sure to keep close the tripod, use a coin or something. If the hand tighten the screw, it could make its way out, which would be unpleasant to say the least. The aim is not great if you're used to the lenses as the Sigma 100-300mm f / 4. And 'next to this small goal. It 'pretty close to a 70-200mm f/2.8, and perhaps slightly' smaller.
Mostof my minor complaints with this lens are mechanical. Do not get me wrong, it feels great, but missing a block or something to keep the barrel extends into position while walking. The latch keeps the barrel extension, but does not take much to remove. There is also a small amount of barrel waver (unless you print). It is not limiter to help accelerate the focus, not good fighters often.
My little problem with the left side isI had a bit soft 'worried at first, but it is really noticeable when shooting brick wall and seems to go all out. This reflects what SLRGear given their opinion is.
Optically, there is some 'visible green / magenta CA bokeh, but it is quite minor and easily corrected in post. You will see some occasional fringes near the edges of the frame too extreme in situations of high contrast, But is still better than average in this sense and not tono contrast systemic damage (as in most lenses 70-300mm). overall contrast is superb with this objective.
The question I always feel Why would I buy this lens when I buy my 55-300mm quarter of the price? Believe me, this lens is worth every penny. It 'really in a league other than the 55-300mm, which is a great lens, but you get what you pay. Looking at the photo does not cut there will be only slight differences, but looking at 100% or arableprints the difference is clearly visible.
I almost abandoned this goal to 4 stars because of minor complaints I had with me, but the goal always makes me smile when I see the results. For this reason, I have given 5 stars. This lens combined with the K-7 to an unbeatable all-time camera kit.
Pentax SMC DA* 60-250mm f/4 ED IF SDM Telephoto Zoom Lens w/ Case for Pentax Digital SLR Cameras Feature
- Please see the above description.
- Currently this item is on backorder. The ETA of availability is 3/13/2009.
Pentax SMC DA* 60-250mm f/4 ED IF SDM Telephoto Zoom Lens w/ Case for Pentax Digital SLR Cameras Overview
Pentax SMCP-DA 60-250mm f/4 ED (IF) SDM Auto Focus Telephoto Zoom Lens Features
Versatile zoom you’ll want on every photo excursion
Designed to deliver top optical performance, the smc PENTAX DA* 60-250mm F4 ED SDM is a versatile telephoto zoom lens. Combiningadvanced technologies including super-low-dispersion optical elements, extra-low dispersion (ED) optical elements and PENTAX original lens coatings, this multipurpose lens assures outstanding image quality with clear, high-contrast images, even at image field edges.
It features water and dust resistant sealing for reliable operation in inclement conditions, and a PENTAX Quick-Shift Focus system allowing instant auto-to-manual focus switching. The objective lens surface is treated with the PENTAX original Super Protect (SP) coating. This special fluorine compound is applied to the lens surface through a vapor deposition process creating a surface that effectively repels dust, water and grease, making it easy to wipe off fingerprints/cosmetic marks.
With special lens coatings, ideal curvature and best positioning of optical elements, this lens is designed to optimize digital imaging characteristics, while effectively minimizing flare and ghosting.
Features
- High performance zoom telephoto lens.
- PENTAX SDM autofocus system for accurate, quiet focusing performance.
- Weather and dust resistant construction for safe and reliable operation in the field.
- Quick-shift Focus System for instant switching from autofocus to manual focus.
- PENTAX SP coating protects the exposed lens elements.
- ED lens elements compensate for chromatic aberration.
- Focal length equivalent to 92-383mm (in 35mm format).
- Developed specifically for PENTAX digital SLRs.
Available at Amazon
More Customer Reviews
Wow! – B. Ober – Layton, UT
I love this goal! I moved from 18 to 250 and will probably never look back.
It is a beast – the only thing that the Pentax DA 18-250 was during this weight and size – if you're hiking all day this is not the goal that want your neck. I use the D-rings for my backpack to hold my camera and lens – much easier on the neck.
If you are looking for a zoom of the scene strong and can support the enormous cost – is a good target for acquisition. Hemuch better than the IQ of 18-250 plus has the ability to focus manually if necessary. It 's easier to stop a little past 200 mm.
Best long tele zoom for Pentax DSRL – Timo Torma – Copiapó, Chile
Advantages: Sharp wide open, great color rendering, excellent construction, waterproof
Disadvantages: heavy (like all quality objectives of this range), dear, no limiter
This is an excellent lens for Pentax cameras DSRL. I have nothing positive to say, but after a month of use with K-7.
Although it has no zoom lock, the gun does not show rampant.
The tripod is easy to leave when it is not necessary and the necklace is 90 degrees, which pointsyou hear very clearly when you turn the collar. Zoom ring feels a bit 'sticky if you try to zoom out until the holding of the lens, but due to the weight of the cane and glass. If you play the lowest point of the movement becomes soft.
The only thing I can find is a bit 'small oscillation of the barrel during zoom at all, but seems to have no effect on image quality.
The absence of a limiter can cause slow development as the mechanism must be complete if you travelpre-focus manually.
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*** Product Information and Prices Stored: Jul 17, 2010 16:40:57
