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01-05-2016, 08:10 PM   #1
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Getting a 300mm

Hey guys

On a 645z, looking to get a 300mm. This is for people/animal shooting. Bokeh is important. Before anyone suggests using the 150mm like a normal person, I already am. I like a more longer compressed look for certain shots.

Any opinions on whether I should get the 645 version of the 300mm or the 67 version?

I don't mind about manual focus. If the 67 lens is better, i'm up for using it.

cheers

01-05-2016, 08:22 PM   #2
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Both are great. The 67 is sharp from F4 while and over the entire field while the 645 gets significantly better at F5.6, especially in the corners. I'd still recommend the 300mm 645 lens for portraits, especially at F4. Sharp but not too sharp, wonderful bokeh, and the autofocus comes in handy. Sort-of like those old 180mm/2.8 ED Nikkors, but one class better.
01-05-2016, 08:30 PM - 1 Like   #3
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The 67 300mm M* is excellent and very sharp even at f/4, but DOF is very shallow. I have no experience with either of the 645 versions, but I do have the 645 150-300 and, based on my tests, at f/8 it's competitive with the 67 300mm. The 300 wins in the bokeh catergory, but it's big and heavy. An example:



Tom
01-06-2016, 12:09 AM   #4
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Bokeh will vary across different 300mm lenses, but the actual DOF should be the same.

If size is no object, you will not do better than the 6x7 300mm f4 EDIF (not to be confused with the earlier f4 non-EDIF). Just a superb lens!

01-06-2016, 06:17 AM   #5
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Hi Ed:

To clarify my ambiguous post: The 300mm M* is very sharp even at f/4, but the DOF is so shallow at f/4, that it can be a problem to get everything desired in focus, as I'm sure you know. Since I generally use f/8-f/16, I find myself using the 150-300mm rather than the 300mm unless I want the bokeh of that lens. I suspect The 300mm would be great for some wedding shots with creamy OOF backgrounds, but perhaps the 645 300mmm would be more suitable as Lacunapratum suggests.

Tom
01-06-2016, 07:34 AM   #6
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QuoteOriginally posted by Thomas Quote
The 67 300mm M* is excellent and very sharp even at f/4, but DOF is very shallow. I have no experience with either of the 645 versions, but I do have the 645 150-300 and, based on my tests, at f/8 it's competitive with the 67 300mm. The 300 wins in the bokeh catergory, but it's big and heavy. An example:



Tom
Hi Thomas,

I am glad this post came up. There is a great likelihood (after a visit to Ricoh's CES booth in Vegas today) I may pull the trigger on a 645Z purchase. I already own three lenses (A120 Macro, FA45-85, FA 200). The next lens will be something longer and possible the 35mm as well. I have been looking for user feedback and reviews on the 150-300. Could you post some pics or elaborate more on this lens. My work involves landscapes and still life which is F11 and up territory.

The reviews are almost not existent for this lens. Any feedback would be appreciated.
01-06-2016, 11:18 AM - 1 Like   #7
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QuoteOriginally posted by Thomas Quote
The 67 300mm M* is excellent and very sharp even at f/4, but DOF is very shallow. I have no experience with either of the 645 versions, but I do have the 645 150-300 and, based on my tests, at f/8 it's competitive with the 67 300mm. The 300 wins in the bokeh catergory, but it's big and heavy. An example:



Tom
Great photo! very evocative of the melancholy of a rainy day....
01-06-2016, 07:32 PM - 1 Like   #8
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QuoteOriginally posted by btnapa Quote
Hi Thomas,

I am glad this post came up. There is a great likelihood (after a visit to Ricoh's CES booth in Vegas today) I may pull the trigger on a 645Z purchase. I already own three lenses (A120 Macro, FA45-85, FA 200). The next lens will be something longer and possible the 35mm as well. I have been looking for user feedback and reviews on the 150-300. Could you post some pics or elaborate more on this lens. My work involves landscapes and still life which is F11 and up territory.

The reviews are almost not existent for this lens. Any feedback would be appreciated.
I seem to have exceeded my storage here, so I was unable to load my test shots. I compared the 150-300 to the 150mm FA, 200mm FA and the 67 300mm M*. Based on this single test at f/11, I decided the zoom gave up little to the other lenses. The lens is very light and easy to carry, so I don't hesitate to use it rather than the others; it is slower, but at f/11 that point is moot. My experience with this lens is more favorable than some of the reviews I have read. Take a chance. You can always resell if not happy

01-06-2016, 07:37 PM   #9
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I like mine too and find it sharp as well. However, the 645 300mm/4 FA does very well for portraits at f/4. Once you stop down you somewhat loose the medium format advantage.
01-06-2016, 09:05 PM   #10
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I have the 67 M* version and I can't say enough good about it. A wonderful lens all around.
01-06-2016, 10:10 PM   #11
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So what I'm getting here is the 67 version is better, but not as easy/convenient/light to use as the 645 300mm version?

If thats the case the 67 version will do - remember you are talking to this crazy idiot who uses a 645z at a wedding with a zeiss 110mm f/2 lens and a full set of canon lenses at the same time. Doing things the hard way is me
01-06-2016, 10:23 PM   #12
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QuoteOriginally posted by gavincato Quote
So what I'm getting here is the 67 version is better, but not as easy/convenient/light to use as the 645 300mm version?

If thats the case the 67 version will do - remember you are talking to this crazy idiot who uses a 645z at a wedding with a zeiss 110mm f/2 lens and a full set of canon lenses at the same time. Doing things the hard way is me
You want this version of the 67 300/4:

SMC Pentax-M* 67 300mm F4 ED [IF] Reviews - 67 Telephoto Primes - Pentax Lens Reviews & Lens Database

The older 6x7 Takumar and 67 300/4 is missing a tripod mount and not that good:

SMC Pentax 67 / SMC Takumar / Super Takumar 6x7 300mm F4 Reviews - 67 Telephoto Primes - Pentax Lens Reviews & Lens Database

Phil.
01-07-2016, 07:56 AM   #13
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If you don't mind carrying around some extra mass, take a look at this 67 M* 400mm f/4

SMC Pentax-M* 67 400mm F4 ED [IF] Reviews - 67 Telephoto Primes - Pentax Lens Reviews & Lens Database

Obviously longer than the 67 M* 300mm f/4

I've found my copy to be beautifully sharp and crispy (nice contrast). I think surftodog (member here) is selling one for a similar price to a mint copy of the 67 M* 300mm would cost. Just a thought...

QuoteOriginally posted by gavincato Quote
Hey guys

On a 645z, looking to get a 300mm. This is for people/animal shooting. Bokeh is important. Before anyone suggests using the 150mm like a normal person, I already am. I like a more longer compressed look for certain shots.

Any opinions on whether I should get the 645 version of the 300mm or the 67 version?

I don't mind about manual focus. If the 67 lens is better, i'm up for using it.

cheers
01-07-2016, 11:33 AM - 1 Like   #14
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Another vote for the 67 300 M*. A great performer. From an optical design perspective, I have always liked the 400 M* and 300 M* over the 645 ED version. Both the 400 M* and 300 M* use nearly the same cross section with a 3 element rear group behind the diaphragm. The 645 300 appears to be an older design using a single negative field flattener behind the diaphragm.
01-07-2016, 02:20 PM   #15
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cheers guys really appreciate all the info
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