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11-11-2014, 10:01 AM   #1
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Pentax 75mm 2.8 AL stands for "awesome lens?"

It has somehow unseated the 105/2.4 as the lens that is glued to my 67II. This thing is so versatile! What's more is that it matches very well with my digital combo which consists of the 58mm/1.4G and the Sigmalux 35/1.4A.

I love this thing for wedding group coverage as well as getting ready portraits. Given that it's such a close-focus performer, anyone try it on the Z or D? An AF version of it would be a portrait champ in the 44x33 format.

Given that it's so flippin sharp, were there ever any published lpm or mtf charts made available?

11-11-2014, 10:44 AM   #2
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QuoteOriginally posted by Sperdynamite Quote
Given that it's so flippin sharp, were there ever any published lpm or mtf charts made available?
Yes the 67 75/2.8 AL is a great all-round lens. Unfortunately it was only in production a few years and not much info was released about it. It did not make it to most Pentax 67 lens guides. Hence the higher price for this lens.

Phil.
11-11-2014, 11:51 AM   #3
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In the past I had looked for MTF charts and for a cross section of the 75AL with no luck. It is most likely similar to the 55mm latest in design type (Distagon-like). There are a few other 6x7 lenses that are similar in performance. The 165LS comes to mind.

Here's a link to my suspected cross section of the 75AL. https://www.flickr.com/photos/18898404@N07/8367759239/

Last edited by desertscape; 11-11-2014 at 12:04 PM.
11-11-2014, 01:29 PM   #4
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I have used it on the D and Z and it performs outstandingly well. Extremely sharp - certainly more so than the 645 75mm's and the older 6x7 75mm. Some people have suggested it has slightly more distortion than the older 6x7 75mm. I own both and can't say that I have ever noticed it, but then I don't shoot a lot of brick walls ;-)

All in all - one of my favourite lenses of all time.

11-11-2014, 01:34 PM   #5
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QuoteOriginally posted by Sperdynamite Quote
It has somehow unseated the 105/2.4 as the lens that is glued to my 67II. This thing is so versatile! What's more is that it matches very well with my digital combo which consists of the 58mm/1.4G and the Sigmalux 35/1.4A.

I love this thing for wedding group coverage as well as getting ready portraits. Given that it's such a close-focus performer, anyone try it on the Z or D? An AF version of it would be a portrait champ in the 44x33 format.

Given that it's so flippin sharp, were there ever any published lpm or mtf charts made available?
I read reviews that the bokeh wasn't really good. You got any sample shots I would be interested. It sounds like a good focal length.
11-11-2014, 05:01 PM   #6
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Well if the bokeh is bad then it's all over. Remind me what bad bokeh is again...?

Check flickr for samples. You'll find plenty.
11-12-2014, 02:14 AM   #7
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QuoteOriginally posted by Sperdynamite Quote
Well if the bokeh is bad then it's all over. Remind me what bad bokeh is again...?

Check flickr for samples. You'll find plenty.
Well this goes from one extreme to the other............
Understanding Bokeh: The art and science behind the beauty of blur (part 1)

Some lenses in the past that I had with bad bokeh looked botchy, rough, etc. I really like the 75mm but I was thinking more for portraits so I wound up with the 150mm instead. I'll check Flickr.

---------- Post added 11-12-14 at 04:24 AM ----------

QuoteOriginally posted by Sperdynamite Quote
Well if the bokeh is bad then it's all over. Remind me what bad bokeh is again...?

Check flickr for samples. You'll find plenty.
So after checking Flickr it's not as bad as I have read. Not the best for everything but maybe I should reconsider. Not to mention the price is favorable. Thanks........

Last edited by cosmonaut; 11-12-2014 at 02:27 AM.
11-13-2014, 11:55 AM   #8
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I really wanted to try out the 75mm f2.8 lens... but too expensive and I suspect I won't shoot enough to make it worthwhile...

I believe one of the major 'advantage' of this 75mm lens is it can focus in much closer distance than the 105mm. Like the head shot here:
https://www.facebook.com/photo.php?fbid=10152905721976062&set=gm.10152776295911421&type=1

bokeh is great with this lens too. Hope I could get my hand on one, one day...

11-19-2014, 03:58 PM   #9
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I concur with the foregoing appraisals about the 75mm AL lens. It is a costly piece of glass but an excellent performer when used correctly. Just because it has a fancy designation does not necessarily mean it will be a class-beating performer. I put my 45mm and 55mm f4 lenses ahead of it just by a smidgeon, but it is much more versatile in its close focusing and is a very easy lens to work with, especially the fast, light focusing, weighted spring of the aperture ring lighter weight over the bulky 55mm.
11-19-2014, 04:40 PM   #10
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My Xmas project this year is to reverse the 67 75/2.8AL and try it as a macro lens.

WIll see how that goes.

Phil.
11-19-2014, 04:45 PM   #11
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That's been done here in Australia, locally, with the lens reversed and affixed to a Minolta X700. The get-up caused a stir when it was brought out to play on the waterfront with many curious stickybeaks gathering. The user of this is overseas at the moment so not sure where his examples are for viewing.
11-19-2014, 04:50 PM   #12
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QuoteOriginally posted by Silent Street Quote
That's been done here in Australia, locally, with the lens reversed and affixed to a Minolta X700. The get-up caused a stir when it was brought out to play on the waterfront with many curious stickybeaks gathering. The user of this is overseas at the moment so not sure where his examples are for viewing.
The weather is crap and too windy here at Xmas, so my macro work is indoors using “daylight” studio lamps.

I’ll post some pictures if they turn out.

I'm also going to use the 6x7 49mm reverse adapter and use a 35mm format Super Tak 28/3.5 on my 67.

Phil.
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