Pentax da 18 135mm wr review năm 2024

SMC Pentax-DA 1 Lens Overview: 3.5-5.6 18-135mm ED AL [IF] DC WR. specially for Radozhiva, prepared Alexey Ovoshchnikov.

SMC Pentax-DA 1: 3.5-5.6 18-135mm ED AL [IF] DC WR

Good day, amateur photographer! My name is Alexey Ovoshchnikov. Here i am on alii.pub/6alpff" target="_blank" title=". Here i am on Facebook. Today I will talk about the SMC Pentax-DA 18-135 mm f / 3.5-5.6 ED AL DC WR lens. This is a pretty universal 7.5x zoom lens for Pentax crop cameras with K mount. The lens is relatively new and is sometimes sold bundled with the Pentax K50 / K70 / K3 / KS 2 and other Pentax cameras.

The SMC Pentax-DA 18-135 mm f / 3.5-5.6 ED AL DC WR is a good all-round 7,5x zoom lens for Pentax K-mount cameras. The lens is relatively new and sold separately for about $ 400 and is sold as a bundle with the Pentax K50 / K70 / K3 / KS 2 and other cameras

Specifications: • Optical design: 13 elements in 11 groups • Focal lengths: 18mm - 135mm (27.5-207mm) for APS-C. (equivalent to a 28-200mm full-frame lens) • Minimum aperture f / 22-38 • Angle of view: 76 ° - 11.9 ° • Number of aperture blades: 7 • Minimum focusing distance: 40 cm • Maximum magnification: 0,24 • Autofocus drive: ultrasonic motor • Diameter of a thread for a light filter: 62 mm • Weight: 405 grams • PH-RBC hood included (not in the review) • Year of the beginning of production: 2012

Constructive and ergonomic

The lens has dust and moisture protection and is equipped with a rubber o-ring (red) on the bayonet side.

The lens has been manufactured since 2012 and has all the modern advantages in its design.

The lens is relatively light and compact, weighing only 405 grams. The lens has a metal mount. The assembly is excellent, everything is just top notch. The zoom ring rotates evenly and fairly easily. The lens is made of quality materials. The elastic bands are very pleasant to the touch, rather soft, but do not stretch, the material is tenacious, the fingers do not slip. For a couple of years of use, nothing happened to the rubber bands. They do not dangle and are not deformed at all. You won't find squeaky flimsy plastic in this lens. I would like to note that at the maximum zoom, there is still a play of + - 1 mm of the retractable part of the lens.

SMC Pentax-DA 1: 3.5-5.6 18-135mm ED AL [IF] DC WR

Auto focus

The internal focusing method is used. The front lens remains stationary - a plus. You can use any color filter without any complications. The lens has a built-in focusing motor. This is good for Pentax, because until recently most lenses were screwdriver lenses. Focusing is fast (much faster than Pentax screwdriver whale lenses), quiet (again, compared to Pentax screwdriver auto focus lenses, it is just super quiet! But louder than any Kenon ultrasonic), focusing is quite accurate. I used a lens on my camera Pentax K30 (This is the best whale lens for this camera as an all-in-one). Focusing on Pentax K7 works so well, but Pentax K7 is an unpleasant feature.

I'd like to point out that not all Pentax digital cameras are capable of working with SDM lenses (which have a built-in focus motor), but this applies only to the oldest Pentax cameras. Also in the Pentax lineup there are lenses that can work both as a screwdriver and from the built-in SDM motor. In practice, this means checking compatibility before purchasing a lens. I can't say anything more about this.

The manual focusing method with this lens can give you some inconvenience. There are no markings on the lens barrel for focusing distance in meters or feet. That is, we will do everything by eye. I did not like the fact that the lens has a very strong flight over infinity. You will not be able to set infinity blindly in one movement…. The lens supports manual focus control when autofocus is enabled on the camera. I did not notice any conflicts in the electronics. If you turn the focusing ring manually, then the automation does not prevent you from focusing the way you want.

Stabilizer

As you know, in modern Pentax central control centers, starting with the K10 K100 models, there is a stabilizer. This stabilizer works great! With all the lenses, and with that 18-135 too

Image quality

As for the image quality, not everything is as good as we would like for this price and for the quality of the lens manufacturing ... but the lens shows good results for amateur photography.

I will give photographs of a different plan with and without processing. The lens found a new owner, so I most likely will not be able to supplement the review. Vignetting - darkening at the edges of the frame (especially in the corners)

There are open aperture values ​​over the entire range of focal lengths, but it can be corrected by applying the appropriate lens profile in the Camera RAW converter. In the photographs given for example, it is very clearly visible how vignetting decreases or completely disappears on the processed version of the photograph.

Chromatic aberration and distortion

HA correct in the camera itself (not completely) if you enable the corresponding function, distortion (geometric distortion) corrects in the same way, it is very good, although it slows down the camera a little. You can also get rid of these shortcomings using popular software. The photo shows an example of aberrations without correction. The branches in the upper right corner have a purple trim.

There is distortion on almost all focal points (either a barrel or a pillow), at first I took a lot of photographs of the architecture and was going to show distortion, but we will get by with a couple of examples and the fact that the lens profile corrects distortion perfectly. Fortunately, the lens is new and this profile is immediately available in modern software.

Sharpness

Very good for large zoom zoom. Such a lens is not bought for the sake of sharpness, but, nevertheless, you will get it. Of course, the soapy edges of the frame will be present especially at 18 mm, but sharpness can be achieved by covering the aperture or changing the focal length. Already at 24 mm, the sharpness is very good! Even at 135 mm there is no soap, the sharpness is not super, but still pleased.

Back light

Everything is fine here too. I will show some examples and judge for yourself. Immediately I say HDR photo (not on-camera, but folded in a program of three photos taken in RAW format with different exposures)

As they say hares catches, but not much. This didn’t bother me at all when shooting, on the contrary, I intentionally “caught” these hares in this photo. Satisfied with the result.

Boke

Strong blurring can be obtained by using a zoom of 80 mm or higher. Aperture this will be F 5,6. The lens is not bad for portraiture, but with a number of limitations. The limitation is that aperture will be 5.6 and the room will not be easy.

Personal experience

In general, a good lens without obvious disadvantages! This is a new generation travel zoom. It has everything that the first travel zoom like the Tamron 28-200, Sigma 28-300, Canon EF 28-135mm f / 3.5-5.6 IS USM lacked, I remembered them because I had experience using these lenses. They are significantly worse in most or in all of the above parameters. If you have this kind of zoom and it suits you with focal but not very good quality, then Pentax 18-135 can be an excellent receiver when changing the system. Compared to the Canon EF-S 18-135 3,5-5,6 IS from Kenon. These are very close quality lenses. Here Pentax is better only in performance. If you compare with the Nikon 16-85 mm F3,5-5,6 VR, then Nikon is ahead in terms of the convenience of focal and sharpness, especially in the wide-angle position.

What does DA mean in Pentax lenses?

All currently-available Pentax lenses are members of the following series: DA (digital, APS-C crop format); DA L (affordable digital kit); D FA (full-frame, digital optimized); and. FA (full-frame, film-era) series.

Is 18

But for photographers just getting into the Sony system, or those thinking about upgrading an older model and supplementing their existing lens kit, the E 18-135mm f/3.5-5.6 OSS is the best bundled zoom you can get, and our Editors' Choice. Compact. Sharp. Minimal distortion and vignette.

Are Pentax lenses full frame?

Most of Pentax's digital SLRs use the APS-C sensor size. This includes the current-generation KF and K-3 Mark III, and past models with names as varied as *ist D, K-x, K20D, and K-7, just to name a few. To date, the only digital models with the larger full-frame sensor size are the K-1 and K-1 Mark II.

What is the focusing distance of the Canon 18

The lens has a minimum focus distance of 15.4”/39cm and at 135mm turns out an impressive (and highly useful) .