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07-17-2013, 07:03 PM   #1
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645N vs. Nll ?

Well after starting to scan older work , I can honestly say , I MISS FILM ! So, i bought 9 rolls EPY 120 format on fleabay today, but have no film camera anymore, 'cause i sold my soul for 645D...............

So, my experience was with the half dozen or so 67ll bodies i had over the years....I'm thinking 645 this time.

What are the differences between 645N and 645Nll ? Slight or major ?

My only FA lens is the 80-160, 400 5.6 and the DFA 90 (which i dont know if it covers 645). Everything else is A or 67 with adaptor.

Thanks in advance for any shared experiences.

07-17-2013, 09:25 PM   #2
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QuoteOriginally posted by 672 Quote
Well after starting to scan older work , I can honestly say , I MISS FILM ! So, i bought 9 rolls EPY 120 format on fleabay today, but have no film camera anymore, 'cause i sold my soul for 645D...............

So, my experience was with the half dozen or so 67ll bodies i had over the years....I'm thinking 645 this time.

What are the differences between 645N and 645Nll ? Slight or major ?

My only FA lens is the 80-160, 400 5.6 and the DFA 90 (which i dont know if it covers 645). Everything else is A or 67 with adaptor.

Thanks in advance for any shared experiences.
This PF link shws the difference between the three 645 film cameras:

Pentax 645NII - Pentax 645 Medium Format - Pentax Camera Reviews and Specifications

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07-17-2013, 09:54 PM   #3
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I sort of went through this question early this year when I decided to upgrade my original 645, AFAIK the only real difference is mirror lock up which...to me is no big deal for the extra money of a NII. I went with the N and have never looked back.
07-17-2013, 10:03 PM   #4
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I have read that using a 645 set to 16 frames per roll can cause sharpness problems because the part of the film that rests on the rollers is used for the next shot and isn't completely flat. With 15 shots this doesn't happen as that part or the roll becomes the gap between frames, rather than being mid-frame. The 645N has to be set to either 15 or 16 frames in a Pentax service centre (although they no longer do it, so you're stuck with whatever the camera's set to), while on the NII you can set it yourself.

As I've only used an original 645, I don't have any personal experience of this, but it's something that came up while researching my first medium format camera.

As for MLU, I've shot down to 1/15s on my 645 and never seen mirror shake.

07-18-2013, 01:41 AM   #5
672
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Wow , no mirror lock up sounds terrible , i cant imagine, how did they ever sell the N version? I will go Nll which also means the body cant be older than 2001. Thanks for the link to the comparisons.
07-18-2013, 07:48 AM   #6
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QuoteOriginally posted by 672 Quote
Wow , no mirror lock up sounds terrible , i cant imagine, how did they ever sell the N version? I will go Nll which also means the body cant be older than 2001. Thanks for the link to the comparisons.
This is not a problem, the mirror has a very gentle mechanism and a MLU is not needed. I made shots over 30 sec. without any movement.

Last edited by fs999; 07-18-2013 at 07:53 AM.
07-18-2013, 08:26 AM   #7
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QuoteOriginally posted by fs999 Quote
This is not a problem, the mirror has a very gentle mechanism and a MLU is not needed. I made shots over 30 sec. without any movement.
That long of an exposure will wash out any mirror or shutter vibration. Its duration is way too short compared to the overall exposure to be recorded.
07-18-2013, 10:26 AM   #8
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I made also shorter exposures like 4 sec...

07-26-2013, 04:01 PM   #9
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The frame count adjustment was big for me, and the reason I went with the NII over the N. Since I rarely shoot a whole roll at a time, I did not want to have to burn the next shot for a flat frame, that would get too expensive very quickly. As a matter of fact, I actually will very soon have a very nice perfectly working 645NII and some accessories available for sale. You can contact me if you want more information.
07-31-2013, 09:24 AM   #10
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I've never had problems with film flatness using my 645n. As far as the MLU question, see this test on The Luminous Landscape 645-MLU The 645nII does imprint the focal length of the lens used, which the 645n doesn't, a nice added feature. Given the large price difference between the two bodies my choice was a simple matter, for the difference I was able to buy another lens.
08-01-2013, 09:33 AM   #11
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What grhazelton has said

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08-01-2013, 12:17 PM   #12
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I had severe problems with film flatness with the 645N. Fortunately () mine was destroyed in a drop accident so that I had to buy a 645NII where the problem is non-eksistent when using 15 frames/roll.
Maybe I will post pictures some day.....
08-07-2013, 07:50 AM   #13
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QuoteOriginally posted by grhazelton Quote
...The 645nII does imprint the focal length of the lens used, which the 645n doesn't, a nice added feature. ...
My 645N does imprint the focal length...

672, here you can find, side by side, the specifications of all (film) 645s : Pentax 645, Pentax 645N and Pentax 645NII Compared.
08-07-2013, 10:03 AM   #14
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I have all three film 645s. Image quality -- they are (not surprisingly) identical. Convenience-wise, I am not a fan of the 1980s-style up/down buttons for stuff like the shutter speed, so I prefer using the 645N or 645NII.

Comparing the 645N to the 645NII -- I can say there is really no appreciable difference (I suppose the mirror lock-up feature on the 645NII is nice to have, but I have never seen a noticeable difference between the 645N and the 645NII that would point to mirror shake (shutter shake, though . . . well possibly, but neither one of these cameras is going to help you there!).

Likewise, I have absolutely never, ever seen any problem with film flatness in any of these three bodies, and I suspect that is more urban legend than anything else; I have never seen any authoritative message from Pentax that would indicate there was / could be an issue with film flatness on the 645N.

Your concern about age . . . well, you definitely have a good point there. Buying a 645NII would assure you you're getting a more recently produced body.

Regardless of what you get, you are making a terrific decision by (A) getting back into FILM again, and (B) going with the Pentax 645 line. I love my 645 cameras!

Last edited by tlong423; 08-07-2013 at 10:05 AM. Reason: Typos
08-07-2013, 11:38 AM   #15
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QuoteOriginally posted by tlong423 Quote
Likewise, I have absolutely never, ever seen any problem with film flatness in any of these three bodies, and I suspect that is more urban legend than anything else; I have never seen any authoritative message from Pentax that would indicate there was / could be an issue with film flatness on the 645N.
It says so clearly in the 645NII manual.
The film flatness is far from urban legend. I had my 645N at repair four times for the problem with no luck. We figured out it might be flatness related due to the spacing between the frames and when the 645NII were released it was mentioned in the manual. Problem solved!
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