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Pentax 645D- A potential winner
#1
http://www.bjp-online.com/british-journa...45d-camera



oh well.....



Nick
#2
[quote name='yesman`' date='09 June 2010 - 12:38 AM' timestamp='1276040316' post='354']

http://www.bjp-online.com/british-journa...45d-camera



oh well.....



Nick

[/quote]

If I could gather the money for it, I'd go for it in a heart beat.. A medium format I can use for pretty much all of my photography, even sports and animals.
#3
I hope they manage to attack that market so that we can get cheaper more accessible Digital MF camera.
#4
[quote name='yesman`' date='09 June 2010 - 12:38 AM' timestamp='1276040316' post='354']

http://www.bjp-online.com/british-journa...45d-camera



oh well.....



Nick

[/quote]



Whoever buys this will need to invest in a new HDD, maybe even a new computer. When shooting detailed landscapes, my 21MP 5DII frequently produces files of 36MB which fill up my HDD pretty quickly, especially when using LR3 which makes an archive copy of each processed file. Heaven knows what file size a 40MP sensor will produce. 70MB?



Michael
#5
[quote name='Alexander (former netrex)' date='09 June 2010 - 12:30 AM' timestamp='1276043440' post='356']

If I could gather the money for it, I'd go for it in a heart beat.. A medium format I can use for pretty much all of my photography, even sports and animals.

[/quote]



Sorry for sounding pessimistic, but wouldn't it be a bit of a struggle to shoot sports with 1 fps?
#6
[quote name='Lomskij' date='09 June 2010 - 09:29 AM' timestamp='1276072160' post='370']

Sorry for sounding pessimistic, but wouldn't it be a bit of a struggle to shoot sports with 1 fps?

[/quote]

I guess it depends on what sports you shoot. I usually don't use my 4.7 FPS, and I think I could get my with 1.1 FPS <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt=':blink:' />
#7
There are of course sports photographers that do not do the machine gun fire in the hope to by accident catch a good image. A bigger problem for sports may be the speed of its AF.



I see a bigger problem for the in the article mentioned intended target photographer: the amateur/ semi pro landscape photographer.

While the camera is based on medium format 60 x 45mm, and as a result will have access to lenses with focal lengths suited to and designed for 6x4.5cm format, the sensor is actually a 44 x 33mm affair.



That makes it a 1.36x crop factor camera... What makes the Canon EOS 1D a great sports and photo journalist camera, and not the most obvious landscape photo tool, will go for the 645D too.
#8
[quote name='Brightcolours' date='09 June 2010 - 01:09 PM' timestamp='1276085364' post='384']

There are of course sports photographers that do not do the machine gun fire in the hope to by accident catch a good image. A bigger problem for sports may be the speed of its AF.



I see a bigger problem for the in the article mentioned intended target photographer: the amateur/ semi pro landscape photographer.

While the camera is based on medium format 60 x 45mm, and as a result will have access to lenses with focal lengths suited to and designed for 6x4.5cm format, the sensor is actually a 44 x 33mm affair.



That makes it a 1.36x crop factor camera... What makes the Canon EOS 1D a great sports and photo journalist camera, and not the most obvious landscape photo tool, will go for the 645D too.

[/quote]

I don't think the auto focus speed will be a problem. I did sports and fast action just fine with the Pentax K10D and I'm doing it now with the Penta K-x, and the 645D has a newer more advanced auto focus system with the same number of focus points as the previous system Pentax used.



The sensor is much larger than the 1D sensors (APS-H, 28.7mm*19mm). The 645D crop factor is 0.78, not 1.36. Its diagonal is 55mm vs. the APS-H's diagonal is 34.4mm, so the crop factor is 1.26 (if the sensor is exactly 28.7mm*19mm).



Unless I've misunderstood something very much.
#9
[quote name='Alexander (former netrex)' date='09 June 2010 - 01:44 PM' timestamp='1276087497' post='385']

The 645D crop factor is 0.78, not 1.36.

[/quote]



No, no. Crop factor compared to film medium format (6x4.5).



-- Markus
Editor
opticallimits.com

#10
[quote name='mst' date='09 June 2010 - 02:14 PM' timestamp='1276089291' post='386']

No, no. Crop factor compared to film medium format (6x4.5).



-- Markus

[/quote]

Hm, I don't get it. Why would then the 1D be the same in those aspects? I'm confused <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/tongue.gif' class='bbc_emoticon' alt=':blink:' />
  


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