Home

"pentax 70mm limited" Y & marketplace (38) Y Only

Pentax K-Mount HD DA 70mm f/2.4 70-70mm Fixed Lens for Pentax KAF Cameras (Limited Black)

$599.00


Pentax HD Pentax DA 70mm f/2.4 Limited Lens (Black)

Aside from the new coatings, the construction and optical formula for the Pentax 70mm HD Limited lens remains altogether unchanged from the previous non-HD model -- Pentax 70mm f/2.4 Limited SMC DA -- although Pentax has tweaked the aperture diaphragm for a rounder shape, which should make for more pleasing bokeh. Cosmetically speaking, things are not drastically different from the older model, with the new version sporting a red ring as opposed to a green one.

Distortion
Being a medium telephoto portrait lens, you would expect to see very little distortion, and the Pentax 70mm HD Limited lens is no exception. There's only a touch of barrel distortion on average, but looking at our sample images as a whole, you can see, in fact, a hint of mild pincushion distortion, that would be either unnoticeable in real-world portait shots or easily corrected in post-processing if desired.

Pentax 70mm f/2.4 Limited SMC DA Review

SMC Pentax-DA 70mm f/2.4 Limited Lens Review

Chromatic Aberration
The new Pentax 70mm HD Limited lens does well at controlling chromatic aberration, although it's not the lowest CA level we've ever seen. The average amount of CA is still quite low, even wide open, and only slightly increases as you stop down (but staying under 300ths of a percent of frame height). Looking at our sample images, we saw nice center areas pretty devoid of any CA, but out in the corners at both ƒ/2.4 and ƒ/8, there's certainly noticeable CA in the form of bright purple and subtle green fringing. However, it looks to be minor enough that a quick adjustment in your photo editing software of choice should clear it up.

The construction and optical formula for the Pentax 70mm HD Limited lens remains unchanged from the previous model, although Pentax has tweaked the aperture diaphragm for a rounder shape, which should make for more pleasing bokeh. Cosmetically speaking, things are not drastically different from the older model, with the new version sporting a red ring as opposed to a green one.