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Archive 2013 · Mamiya 645 lenses
  
 
bluerunner
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p.5 #1 · p.5 #1 · Mamiya 645 lenses




leebert wrote:
Burning questions!!!

1) How do you like the cheap adapters? I have just the one from Fotodiox & it was $45.

2) How do you like the 300 ULD?

....


Leebert, actually you are much better off with your photodiox adapters. 2 of the m645 adapters i bought from eBay will not fit my canon 5D even though it was advertised for 5d. But later I found some that fit.
The 300 N ULD is sharp but only on a tripod. But my favorite is the 105-210 ULD for wildlife. My other favorites are the 55 2.8 N (for carry around) and 120 4 A for macro. In general I like the mamiya 645s along with my takumars and olympus zuikos.



Dec 23, 2013 at 07:32 PM
leebert
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p.5 #2 · p.5 #2 · Mamiya 645 lenses


JohnJ wrote:
I've posted this before but it shows the 80/1.9's harsh bokeh quite well. This is with max tilt (IIRC) on a Mirex and wide open.

<link>


But then you're kidding, since you know the bokeh is harsh & only you like it.

Seriously, I'd be happy with the 80mm or the 150mm.

On APS-C the 80 would probably be better for intermediate work, but I'd be curious to see the MTF's for it versus the 150. The 80 has the advantage of f/1.9, a stop+ faster than the 150, and provided it carries on with Mamiya's reputation for still being sharp(est) wide open ...

Next logical question: By price-point & quality how does it compare with other 645 or Leica-R mounts, w/ the specular highlights?

IAC, I'm prone to doing long work, birds & butterflies ... I might save up for the Sekor 200mm f/2.8 A/APO

I found these data on various charts on the interwebs... check out the 150/2.8 A versus the 200/2.8 A...

Lens name, focal length, max aperture & lp/mm

Sekor C 80/2.8 78
Sekor C 80/1.9: 82 (non-N, non-A)

Sekor C 105-210/4.5 62 (ULD )

Sekor A 150/2.8: 134
Sekor C N 150/3.5: 102

Sekor C N 210/4 78
Sekor A 200/2.8: 171 (APO)

Sekor C N 300/5.6 80 (ULD )

----

Pix coming out of that 200 A can survive a 300% crop & have room to spare.


Edited on Dec 23, 2013 at 09:13 PM · View previous versions



Dec 23, 2013 at 08:47 PM
leebert
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p.5 #3 · p.5 #3 · Mamiya 645 lenses


bluerunner wrote:
The 300 N ULD is sharp but only on a tripod. But my favorite is the 105-210 ULD for wildlife.


If you've got enough light & can stand the ISO's, even that 300 can be handheld. I have the non-ULD C now, & it's pretty nice, but I'm already recognizing the shortcomings on such a conservatively-designed 2-touch zoom/focus.
I have a crappy Tamron & although it's a 2-touch, a light tug on its nose & it acts like a 1-touch zoom (focus & zoom ... this is helpful for tracking moving animals & then zooming in for the last shot. Sadly the Tamron is really only a tele-macro *macro*, soft (myopic?) on the telephoto side.



Dec 23, 2013 at 08:55 PM
JohnJ
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p.5 #4 · p.5 #4 · Mamiya 645 lenses


leebert wrote:
...But then you're kidding, since you know the bokeh is harsh & only you like it.

Seriously, I'd be happy with the 80mm or the 150mm...


Better to remain silent and be thought a fool than to speak out and remove all doubt.

Seriously, you should do a lot more research.



Dec 23, 2013 at 09:36 PM
jcolwell
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p.5 #5 · p.5 #5 · Mamiya 645 lenses


I think the 80/1.9 bokeh suits the subject in JJ's photo extremely well. I like it, even though I don't particularly like its bokeh on single, strong point-source highlights.

Most lenses have positive and negative IQ 'features'. The trick is to know what they are, and to use them appropriately.



Dec 23, 2013 at 09:45 PM
jcolwell
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p.5 #6 · p.5 #6 · Mamiya 645 lenses


leebert wrote:
Lens name, focal length, max aperture & lp/mm

Sekor C 80/2.8 78
Sekor C 80/1.9: 82 (non-N, non-A)

Sekor C 105-210/4.5 62 (ULD )

Sekor A 150/2.8: 134
Sekor C N 150/3.5: 102

Sekor C N 210/4 78
Sekor A 200/2.8: 171 (APO)

Sekor C N 300/5.6 80 (ULD )
...


Hi Lee,

Mamiya 645 lenses have a fairly consistent naming protocol, and none of the names that you used follow it. For example, "Sekor" does not appear in the names of "A" lenses, but it does in some "35mm" (small format) Mamiya lenses.

Here's the names that I use for the lenses you mentioned (as implemented in Lens$db),

Mamiya-Sekor C 80/1.9
Mamiya-Sekor C 80/1.9 N
Mamiya-Sekor C 80/2.8
Mamiya-Sekor C 80/2.8 N

Mamiya C ULD 105-210/4.5

Mamiya A 150/2.8
Mamiya-Sekor C 150/3.5 N

Mamiya-Sekor C 210/4 N
Mamiya A 200/2.8 APO

Mamiya-Sekor C 300/5.6 N

There are a few other variants, including "Mamiya S".

Anyway, it helps everybody when the actual naming conventions are used, rather than impromptu "feels right" labels. That goes for both cameras and lenses. For example, what's up with the recent spate of "classic" cameras, when the correct names are totally unambiguous, and they're not actually "classic", anyway?!? OK, I feel better now.



Dec 23, 2013 at 10:15 PM
 

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leebert
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p.5 #7 · p.5 #7 · Mamiya 645 lenses


Ah, I see. Yeh, I was following various test charts the names where abbreviated & trying to sort out the naming convention. It's good to see there's consistent nomenclature.




Dec 24, 2013 at 01:13 AM
leebert
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p.5 #8 · p.5 #8 · Mamiya 645 lenses


Data for the macro's ( Focus infinity / Focus MFD ):

Mamiya-Sekor C 80/4 N Macro: 88 lines/mm / 129 lines/mm
Mamiya A 120/4 Macro: 125 lines/mm / 205 lines/mm

(I'm assuming those data are in l/mm & not line-pairs/mm... )

I'm very very pleased with the functional reach of the 80/4 N Macro, 4 rocking focus shots across a room & one will come out sharp close to a 200% crop. I have a couple of nice old Nikkor/NK primes & although their color rendition is of deeper hue & saturation, none perform like this in terms of sharpness (& God knows I've tried).

Floor lamp, 2.5 meters away, toying w/ the flash:

Crop:
floor lamp

Full, post-processed:
floor lamp

My uncooperative subject, trying to go easy on the built-in flash:

Crop:
daughter

I'm also very pleased with the Mamiya-Sekor C 105-210mm (neither have much in the way of DOF, must've been shooting wide open at a lower ISO?):


Hallway light:

funky hallway light (SOOC)

.. this one shows no C/A around the light bulbs either ... must've stopped it down some?

SooC/Crop:
living room chandelier that hasn't been dusted since whenever

There was one shot where I could read the "Hg" disposal instructions on the bottom of that CFL chandelier bulb, I think it was keeping sharp right up to "ISO resolution" (24MP "Fine" .jpeg on a Nikon D3200).

Crop/SooC:
CFL disposal advisory

So now I have a new problem, which is the view finder on the D3200 versus my eyesight. I can set the diopter right, but it's still eentsyteentsy, so I'm going to play with 5&dime reading glasses, then maybe get a hinged eyepiece loupe (a camera body upgrade ain't on the list ... I'm leaning toward mirrorless/SLT & but that'll have to wait 'til next year).

About 27 years ago I shot with a Pentax K-1000 but gave it up after a year or two (loved that split prism matte & LED galvanometer/meter). I had no idea about what I could really accomplish with digital photography until I lent the K-1000 to my kid & then gave her a Lumix FZ-200 superzoom P&S last year. She told me to get my own camera, so I ended up with a d3200 & vintage Nikkor glass.

Anyway, now I'm almost over the flu & I have three Mamiya lenses I guess I'll have to find out what else I can do with them! (one's still in the post coming from Japan, the 300 ULD ... I'm dangerous when ill).

--lee



Dec 24, 2013 at 02:25 PM
leebert
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p.5 #9 · p.5 #9 · Mamiya 645 lenses


jcolwell wrote:
Lens$db



That's a fair amt of work there!

I assume there are other sites like it devoted to other lens mfg's, but I was impressed by www.adaptall-2.org.




Dec 26, 2013 at 05:00 AM
hemillion
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p.5 #10 · p.5 #10 · Mamiya 645 lenses


bluerunner wrote:
You are gonna love the 55 2.8 N! Pretty sharp pictures you got there with the 80 2.8 N. I see you are from gator country.... Go 'Noles!


Thanks. I'm not good at composing though.
I couldn't buy it yet. Instead, I bought voigtlander 40mm f2 sl-ii.
I was in Tallahassee before, so I'm a seminole and a gator at the same time, I guess. :P



Feb 17, 2014 at 02:57 AM
hemillion
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p.5 #11 · p.5 #11 · Mamiya 645 lenses


jcolwell wrote:
Hi hemillion,

Welcome to FM.

My C 55/2.8 N is very sharp. So is my C 80/2.8 N. OTOH, I almost always use them at f/5.6 or f/8, for scenic and product photography. I generally use faster primes for "wide-open" shooting.

I like all of my Mamiya 645 lenses; C 35/3.5 N, C 55/2.8 N, C 80/2.8 N, C 80/4 N Macro, A 120/4 Macro, A 150/2.8, and A 200/2.8 APO. They're all very sharp. The C 35/3.5 N is probably the least-excellent of the bunch. It's very much on par IQ-wise with the Contax Carl Zeiss Distagon 35/2.8, which is a
...Show more

Thank you. I observed that, the 80/2.8 N is best at 2.8, in terms of color and saturation. I think, it is because my camera's(d600) auto white balance and autoiso works best at 2.8. When I use it at f/5.6 or so, it is sometimes hard for the camera to assist focusing and the colors are not vibrant.

I'll buy A120/4 macro, A 150/2.8 and maybe 55/2.8 N. But it is hard to find a good copy.



Feb 17, 2014 at 03:08 AM
ZoranC
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p.5 #12 · p.5 #12 · Mamiya 645 lenses


hemillion wrote:
I'll buy A120/4 macro, A 150/2.8 and maybe 55/2.8 N. But it is hard to find a good copy.


Coincidentally enough I have good copies of these and I am looking to sell them



Feb 17, 2014 at 03:18 AM
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