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caspert79
Joined: 31 Oct 2010
Posts: 2995
Location: The Netherlands
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 Posted: Sat Jun 22, 2024 8:54 pm Post subject: John Riley (with MTF chart) Pentax-M 100mm f/2.8. |
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caspert79 wrote:
I’ve praised this lens before because of its tiny size, yet great optical quality and fine build quality. Thought I’d share a more in depth review with you: https://www.pentaxuser.com/review/smc-pentax-m-100mm-f-2-8-lens-review-2237 |
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Doc Sharptail
Joined: 23 Nov 2020
Posts: 1054
Location: Winnipeg Canada
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| Posted: Sun Jun 23, 2024 2:37 pm Post subject: |
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Doc Sharptail wrote:
Interesting read, if not a bit strange discussion of focal lengths.
For years, my first reaction would be to reach for an 85 if 135 was too tight- probably just a matter of personal perception.
There are a few optical equals to the lens discussed- if one can forgive 5mm, the 105 f2.5 A/I-s nikkor cuts a pretty sharp path, with a slightly larger physical presence. The 100mm series E comes close with compact size and great optics. It's draw back is the squeaking, groaning plastic construction.
-D.S.
_________________
D-810, F2, FTN.
35mm f2 O.C. nikkor
50 f2 H nikkor, 50 f 1.4 AI-s, 135 f3.5 Q,
50 f2 K nikkor 2x, 28-85mm f3.5-4.5 A/I-s, 35-105 3.5-4.5 A/I-s, 200mm f4 Micro A/I, partial list.
"Ain't no half-way" -S.R.V.
"Oh Yeah... Alright" -Paul Simon |
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caspert79
Joined: 31 Oct 2010
Posts: 2995
Location: The Netherlands
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| Posted: Sun Jun 23, 2024 3:30 pm Post subject: |
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caspert79 wrote:
| Doc Sharptail wrote: |
Interesting read, if not a bit strange discussion of focal lengths.
For years, my first reaction would be to reach for an 85 if 135 was too tight- probably just a matter of personal perception.
There are a few optical equals to the lens discussed- if one can forgive 5mm, the 105 f2.5 A/I-s nikkor cuts a pretty sharp path, with a slightly larger physical presence. The 100mm series E comes close with compact size and great optics. It's draw back is the squeaking, groaning plastic construction.
-D.S. |
The good thing about the Pentax is, that is has no real weak points. It's half the weight of the Nikkor Ai(s) and it is usually cheap.
Closest lens I can think of is the Zuiko 100/2.8, but it is usually much more expensive, and optically slightly weaker. |
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alex_d
Joined: 19 Jan 2019
Posts: 362
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| Posted: Sun Jun 23, 2024 8:50 pm Post subject: |
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alex_d wrote:
where do you place this lens in the 100Club that you had before ?
i rememebr T 100/2.8 and selling it ..
_________________
for sale: smc super takumar 135/2.5 M42, Yash ML 50/1/4, Yash DS-M 50/1.4 M42, Yash ML 21/3.5, Yash auto 50/2.8, Mir-1 37/2.5 (new!), Jupiter-9 M42+M39(new!), Jupiter-11 135, FD 100/2.8, Konishiroku Konica 100/2.8, Fujinon T 100/2.8(M42/XF), Minolta PF 58/1.4 + 1.7, Meyer O.G. 100/2.8, Meyer O.G. 50/1.8, Meyer O.G. Lydith 30/3.5, Meyer O.G. Domi 50/2.8 ... and many more |
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caspert79
Joined: 31 Oct 2010
Posts: 2995
Location: The Netherlands
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| Posted: Mon Jun 24, 2024 9:11 am Post subject: |
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caspert79 wrote:
| alex_d wrote: |
where do you place this lens in the 100Club that you had before ?
i rememebr T 100/2.8 and selling it .. |
Pretty high, because of great value.
Optically comparable to Nikkor 105/2.5 ai-s and late Minolta MC(5/5) and MD 100/2.5.
Mechanically it's as good as you can expect from a lightweight lens; definitely better than the later Minolta MD's.
Practicality: 10 out of 10.
The Zuiko I shouldn't have sold; mechanically it's a jewel (and it looks like one). |
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