Excerpt: This camera is every bit as good and even better than the one's in line before it. I do weddings and families, no more double shots to make sure every thing was ok with the smiles and eyes open. I've been using the Pentax 645 for almost 20 yrs. and it has yet to fail me. One thing that bothers me is that it would not take the 64GB card, may need an update.
Pros: Easy To Use, Fast / Accurate Auto-Focus, Good Image Quality, High ISO Performance, Large Clear LCD, Quiet
Excerpt: I bought this camera 18 months ago second hand but as new from a US retailer. Since I bought it I have run 6 different cameras alongside each other including a full frame Sony a850 and various high grade lenses. My 35mm DSLR cannot compete with the 645D and the Sony system is being sold. I am also selling an infrared camera, leaving only the 645D, a serious (Foveon sensor) compact, one infrared- DSLR and a point and shoot for casual and clinical work (I am a medic).
Pros: Easy To Use, Fast Shutter Speed, Good Image Quality, Large Clear LCD, Quiet, Superb Legacy Lenses
Excerpt: and it's astonishing. 70% of my shots are portrait/fashion/environmental/lifestyle, and the rest is whatever grabs me (street/cityscapes/landscapes); my main box was a Canon 5D Mark II for the past 4 years.The 645d's images are discernably different--note, "different" and not necessarily "better", though many are--than those I've taken w/ the 5D. 1st, the light capture makes for crisper & more nuanced images.
Pros: Attractive, Decent battery life, Easy to grip, Easy To Handle Despite He, Easy To Use, Fast / Accurate Auto-Focus, Good Battery Life, Good Image Quality, Large Clear LCD, Quality Build, Weather-sealed
Cons: Heavy, Large Nameplate, Poor Image Stabilization, Poor In Low Light
Excerpt: Bought 645D in January 2014 and immediately tested it in Zion (I shoot landscapes only). Still going through the files but I can say already that the image quality is superb and files are very flexible! Before buying into Pentax 645D I had extensively looked through files from d800e, 7r, p45+/P65+, IQ160 and IQ180 and I could not see any substantial increase in color depth or dynamic range in Phase backs, may be except for IQ180.
Pros: Easy To Use, Good Image Quality, Very good battery life, Very Good Viewfinder, Very quiet shutter
Excerpt: The 645N has more features than most digital cameras, yet is very easy to use. The images are 3D like, and can be easily enlarged on my 36 inch Canon printer. I think Pentax has a real winner for the advanced amateur and the pro. I use my 645N in outdoor photography and am very happy with it.
Pros: Easy To Use, Fast / Accurate Auto-Focus, Good Image Quality, Good Image Stabilization, High ISO Performance, Large Clear LCD
Summary: I had a Canon 5D Mark 2 before, and I love it. But two weeks ago, I bought a Pentax 645D and a 55mm F2.8, I hardly knew that what is a real good camera. I love it so much. The price is good fits. The most important is image quality, oh my God, that is only thing I can say when I taking pictures with it. I also like the color control, you have many ways to fix your colors, that's cool!
Excerpt: I purchased this camera to make use of the excellent lenses I owned for the previous film version of the 645N. The images with this camera are far superior to any other digital camera I own. One web site compares the quality of 40 megapixels to a 4 x 5 camera. The dynamic range of 12 stops means I can take a photo with sunlight streaming on one side of the image and the other half in shade and reveal detail throughout. It means fill-flash is just not needed.
Pros: Fast / Accurate Auto-Focus, Good Image Quality, High ISO Performance, Large Clear LCD
Summary: I decided to upgrade from the Pentax K5 to the mighty 645D and must say, am pleased beyond all expectations at this purchase.If you are shopping for a larger than full frame, ie medium format camera, you may already know that the Pentax comes in at well under the price point of nearly every competitor. This is attractive.
Excerpt: I REPLACED MY PENTAX 645N FILM CAMERA WITH THE 645D THUS I WAS ABLE TO USE THE SAME LENSES. EVEN WHEN HAND HOLDING THE CAMERA THE IMAGES WERE ULTRA SHARP AND THE COLORS WERE STUNNING. GREAT FOR LANDSCAPES, PORTRAITS, STILL LIFES, FASHION. LOT OF DATA TO WRITE SO DON'T BE IN A HURRY TO TAKE PICTURES.
Pros: Auto Focus, Fast And Accurate, Reliable Operation