Medium-format cameras offer truly spectacular resolution, but until now, it's always come alongside a difficult compromise. With the Pentax 645Z, that changes. Building on 2010's 645D, the Pentax 645Z offers features that are rare or in some cases unique in a medium-format camera.

Phenomenal resolution and detail; Great high ISO performance; Rugged, weather-sealed body; Huge, bright viewfinder; Fast autofocus works well in low light; Swift performance for a medium-format camera; Good battery life; Shoots Full HD video, Phenomenal resolution and detail, Excellent prints beyond...

Quite bulky compared to an APS-C or full-frame DSLR; Autofocus points clustered near center of frame; Most lenses aren't weather-sealed or optimized for digital; Prone to aliasing artifacts (but so are most high-end cameras these days); Attracts a lot of attention from passers-by, Quite bulky (but...

This camera is incredible. From the moment of the first shutter slap to the last set of images downloaded, the 645z has continued to perform better than anything I've ever used. I shoot mainly landscapes, with Pentax's new medium format system I can achieve results I was never able to before.

I bought the Pentax 645Z on Adorama about 18 days ago. And I took the camera to Vancouver this past weekend to shoot the Seaplanes on the Bay downtown. I have also owned the Pentax 645D. The biggest improvement over the 645D is that the 645Z reads to the card much faster.

I've owned the 645z since February 2015 and my findings are overall very good. As with any high end camera like this, you have to be prepared to do extensive editing to any image for it to look its best. Back in the film days, I was a drum scanner operator at a prepress company.

Let's face it, there aren't many of us out there who can afford to blow £7,699 on a camera and lens, but believe it or not, the 51.4MP Pentax 645Z is an absolute steal at this price.

got to love Pentax the sharpness of the picture taken with the 645z are awesome.

The Pentax 645Z is a medium-format DSLR camera with a 51.4-megapixel CMOS sensor with no low pass filter, offering an imaging area of 43.8mm x 32.8mm which is 1.7x larger than a 35mm full-frame sensor.

"The news about the new 645Z did pop up on the DPReview web site, and avidly read. It was then a matter of patience and obviously time till Henry's Exposure show, where there was a strong chance to get up close and personal with the new kid on the block.

As a dedicated photographer for many years, I have used many different cameras: Nikon F-3, Canon 5Ds, Mamiya RZ67, Hasselblad, Sony A7r and others. But the one camera I truly wanted most was a digital medium format. In stepped Pentax with a now affordable answer.

Although the Pentax 645Z medium format DSLR has been out for a few years, I only had a chance to try it out earlier this year, during my trip to Death Valley. I have been wanting to try the 645Z for quite some time, since I heard so many good things about it.