Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-29-2007, 10:53 AM   #1
Senior Member




Join Date: Feb 2007
Location: Wolfville, NS
Photos: Gallery
Posts: 197
Which 135mm?

Alright, Im looking into this, and what is the big difference between the F/2.8 and F/3.5 versions?

Thanks
Steven

04-29-2007, 11:04 AM   #2
Veteran Member
jfdavis58's Avatar

Join Date: Nov 2006
Location: 13 S 0357397-3884316
Photos: Gallery
Posts: 876
About 1/2 stop. I would assume that the 2.8 is built to somewhat higher standard as to material and construction-but that's a weak assumption.
04-29-2007, 11:22 AM   #3
Veteran Member
FotoPete's Avatar

Join Date: Feb 2007
Location: Toronto
Photos: Gallery
Posts: 1,710
I don't think you can really go wrong with any Pentax 135mm. The M135/3.5 is a solid lens and is very cheap. If you want one that falls nicely into your nice a$$ collection of primes, from a collectors viewpoint, I'd try to find the A*135/1.8.

| 21mm F/3.2 | 31mm F/1.8 | 40mm F/2.8 | 50mm F/1.2 | 77mm F/1.8 | 135mm F/1.8 |

Would look better than a 135/3.5 or 2.8. But all 135mm coming from Pentax are very nice.
04-29-2007, 12:53 PM   #4
Senior Member




Join Date: Feb 2007
Location: Wolfville, NS
Photos: Gallery
Posts: 197
Original Poster
ha! Well thanks Pete, but im looking mainly for one thats small and light. Thats where the question really comes from. I have heard such great things about the F/3.5 version, and not too mucha t all form the F/2.8 version, but the size differential is so small, you know?

As for the lens itself, its going on an LX, so I can build a small and relatively light kit for treking it out in the rockies. As great as the K10 is, its just large, and I would feel horrid if I busted that doing something stupid. As for an LX, I found one for $25 in a bit of rough shape (Yard Sale), but the shutter is still sound, and teh meter is acurate, so it would work perfect for climbing boulders and going through rivers.

Thanks for any imput into this matter! Im quite lost on which one to get for this.

04-29-2007, 01:02 PM   #5
Veteran Member
GaryML's Avatar

Join Date: Nov 2006
Location: San Diego, California
Posts: 441
QuoteOriginally posted by scribble Quote
Alright, Im looking into this, and what is the big difference between the F/2.8 and F/3.5 versions?
There have been many Pentax 135mm lenses. Assuming we are discussing the ones made by Pentax, and not the third-party brands, then look at following Web site for a complete list of the Pentax lenses:

Bojidar Dimitrov's Pentax K-Mount Equipment Page

The following is my experience with Pentax 135 lenses:

SMCP-FA 135mm f2.8 [IF]: Probably the best of the 135mm f2.8/3.5 lenses (not including the SMCP-A* 135mm f1.8, which is probably the best, most expensive and heaviest Pentax lens in this focal length). I have the FA 135mm lens and I like it a lot. Highly recommended. The SMCP-F 135mm f2.8 [IF] is the same optical formula with only cosmetic differences, and it is also recommended.

SMCP-M 135mm f3.5: A good lens that I used with film bodies. It is manual exposure and manual focus. I have also used the M 150mm f3.5 and it also gave good results.

Takumar A (Bayonet) 135mm f2.5: I had this lens and it was disappointing. A 4 element design. I would avoid the 4 element 135 mm lenses, including the A 135mm f2.8 and the K 135mm f2.8.

K 135mm f2.5: I haven't tried this lens but I've read favorable reports. This lens would be preferred over the 4 element lenses listed above, and possibly preferred over the M f3.5.
04-29-2007, 02:08 PM   #6
Forum Member




Join Date: Feb 2007
Posts: 95
I have never used but have seen great results from the K 135 2.5 (not the Takumar bayonet cheep version) My impression is that this is basically the SMC Takumar 135 2.5 in the K mount.
04-29-2007, 02:49 PM   #7
Senior Member




Join Date: Nov 2006
Location: Kamloops, B.C.
Photos: Gallery
Posts: 226
I just picked up the M-135mm f/3.5

A rough and tumble beast that would handle any of the mountaineering you throw at it. Built-in lens hood, fantastic construction.

Downside is that it's fully manual... although that's almost what an LX needs
04-29-2007, 04:00 PM   #8
Veteran Member




Join Date: Sep 2006
Location: Melbourne, Australia
Posts: 423
Hi Steven

I have got K135/2.5 and FA135/2.8 and used to own M135/3.5. Here is my take on them:

Portability (ie from smallest to biggest):
M135 > FA135 > K135

Sharpness (from sharpest to less sharp):
K135 > FA135 > M135
The K135 is a tad sharper than FA135 wide-open.

Ease of use (from easiest to less easy):
FA135 > M135 >= K135

Anyway here is two very unscientific test shots I have got with K135 and FA135:

FA135


K135


cheers
Kenny

04-29-2007, 04:28 PM   #9
Veteran Member
jthommo's Avatar

Join Date: Sep 2006
Location: Canberra, Australia
Photos: Gallery
Posts: 339
I have the M135/3.5 - lovely manual lens, small, light, well put together with a built-in hood and very sharp. I found one on eekbay for about 50 bucks I think.
04-29-2007, 05:54 PM   #10
DAP
Senior Member




Join Date: Feb 2007
Posts: 151
QuoteOriginally posted by GaryML Quote
I would avoid the 4 element 135 mm lenses, including the A 135mm f2.8 and the K 135mm f2.8.[/B].


I wouldn't put all the 4 element designs in the same category - the K135/3.5 is sharper than the M135/3.5 and it is a 4 element design. The only problem with it is its size (way bigger than the M version). Definately a high quality bargain though
04-29-2007, 07:01 PM   #11
Veteran Member
FotoPete's Avatar

Join Date: Feb 2007
Location: Toronto
Photos: Gallery
Posts: 1,710
OMG LX for $25...ARGH. Why does everyone stumble on the goods and I never do!

I just got sniped out of a Vivitar Series 1 19-35mm today on ebay and I have a feeling it was someone on this forum LoL...grrr
04-29-2007, 08:59 PM   #12
Veteran Member
rfortson's Avatar

Join Date: Sep 2006
Location: Houston TX
Photos: Gallery
Posts: 2,129
I have the SMC-A 135 f/2.8, which doesn't get a lot of love from the general crowd, but I really like it. It's great for indoor events, such as concerts, since it's small, has decent reach, and fairly fast. Oh, and it's also cheap! I paid ~$100 at a camera store, and you can find them online for less.

Personally, I think ANY of the 135 f/2.x are bargains. That 1/2 stop can come in handy, and it doesn't cost that much. Here's a shot taken with it from a couple of months ago, f/2.8, ISO800, 1/100s, handheld.



For the price, you can't beat the performance in my book.
04-30-2007, 05:27 PM   #13
New Member




Join Date: Apr 2007
Location: Buenos Aires, Argentina
Posts: 20
Hi, I use the Pentax-M, 135mm,f/3.5 and it is a very good lens, makes nice shots and is cheap to buy.
05-01-2007, 04:10 PM   #14
Senior Member




Join Date: Feb 2007
Location: Wolfville, NS
Photos: Gallery
Posts: 197
Original Poster
Well thanks guys! This makes the decision much easier!
05-02-2007, 11:24 AM   #15
Veteran Member
volosong's Avatar

Join Date: Sep 2006
Location: Antelope Valley, SoCal
Photos: Gallery
Posts: 660
Got a copy of the M135/3.5 and it is an excellent lens. Best about it is the size. Cute as a button. Also recently acquired a K135/2.5 and it is quite a bit bigger and heavier than the M version. Optical quality is a tad better than the 3.5, but because of the relative sizes, the M usually gets the call if I have to lug one around on foot, especially if light isn't an issue.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
k-mount, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale - Sold: Pentax 28-80mm, 35-135mm and sears 135mm YJD Sold Items 5 07-15-2009 01:42 PM
For Sale - Sold: Pentax 50-135mm SMCP-DA* 50-135mm f/2.8 ED IF SDM mmzymxf Sold Items 1 10-28-2008 01:01 PM
For Sale - Sold: SuperTak 35mm f/3.5, Soligor 135mm f/2.8, Hanimex 135mm f/2.8 (M42 lens) hinman Sold Items 14 01-14-2008 11:36 AM
Mid Range Zoom - Tamron 24-135mm or Pentax F 35-135mm? Khukri Pentax SLR Lens Discussion 0 06-26-2007 02:02 AM
For Sale - Sold: Make Offers: Haminex 135mm f/2.8, Sears 135mm f/2.8, Super Albinar 100-200mm f inneyeseakay Sold Items 1 06-23-2007 02:05 AM



All times are GMT -7. The time now is 06:40 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top