Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-23-2008, 04:03 AM   #46
New Member




Join Date: Apr 2008
Location: Viseu, Portugal
Posts: 20
QuoteOriginally posted by Miserere Quote
Sure, we have a fast(ish) 77mm prime, but at $700 it's out of my reach (and I'm not alone)
Yes...but you have a 70mm that it's cheaper and still an amazing lens. Ok, it's not so fast...but you can't have it all. It's all about options...and while you have plenty of options below 100mm, you have none between 100 and 200mm...let alone above 300mm...but that's another story

04-27-2008, 06:29 PM   #47
Veteran Member
Miserere's Avatar

Join Date: Sep 2007
Location: Boston
Photos: Gallery
Posts: 1,994
QuoteOriginally posted by mauricio Quote
Yes...but you have a 70mm that it's cheaper and still an amazing lens. Ok, it's not so fast...but you can't have it all. It's all about options...and while you have plenty of options below 100mm, you have none between 100 and 200mm...let alone above 300mm...but that's another story
I have a Tokina zoom that's f/2.8 at 70mm and performs quite well. The reasons I wish to buy primes are:
  1. Better IQ than a zoom
  2. Faster speed than a zoom
  3. Compactness and lightness

The increased IQ isn't a matter of design expertise per se, a good prime that is optically better than a good zoom is easy to build. It's also easier to make a prime faster. I'm not going to spend money on a prime if I'm not gaining both IQ and speed over a zoom. I would also expect it to be cheaper. I'm ready to bet that the profit margin on the 77 Ltd is much higher than that of the DA* 50-135mm, despite similar price tags. And I would love for somebody to test these two at f/2.8 to see exactly how much IQ we gain from shooting the Ltd...if any.

It's not hard to build an 85mm f/2, so please Pentax, get us a DA 85mm f/2 for no more than $400, will ya?
04-28-2008, 02:56 AM   #48
New Member




Join Date: Apr 2008
Location: Viseu, Portugal
Posts: 20
I agree with your points but I would add "quality of construction" as number 2. That's why I like the limited lenses so much. They have the IQ, they have the compactness and lightness and yes, they could be a bit faster...but personally I rather have a metal lens and a bit slower than a plastic lens a bit faster...but that's just me To make the 70 faster or create an 85mm with the same quality of thr 70mm and faster, it would certainly mean that it would cost the price of the 31mm limited.
04-28-2008, 03:33 AM   #49
Veteran Member
Miserere's Avatar

Join Date: Sep 2007
Location: Boston
Photos: Gallery
Posts: 1,994
QuoteOriginally posted by mauricio Quote
I agree with your points but I would add "quality of construction" as number 2. That's why I like the limited lenses so much. They have the IQ, they have the compactness and lightness and yes, they could be a bit faster...but personally I rather have a metal lens and a bit slower than a plastic lens a bit faster...but that's just me To make the 70 faster or create an 85mm with the same quality of thr 70mm and faster, it would certainly mean that it would cost the price of the 31mm limited.
Some people will sacrifice speed for size, but I'm not one of them. Primes under 100mm are compact enough for me, so I would rather have the speed.

Maybe Pentax cannot justify the production costs of having parallel lines of lenses: The elite, pricey, compact Ltds on one hand; and the standard-size, more economic, fast DAs on the other.

04-28-2008, 04:50 AM   #50
New Member




Join Date: Apr 2008
Location: Viseu, Portugal
Posts: 20
That's probably it. One of the things that bothers me with Pentax bet on the DA lenses is a future full frame Pentax body.
04-29-2008, 03:17 AM   #51
Inactive Account




Join Date: Apr 2008
Location: ho chi minh city - vietnam
Posts: 1
takumar 135 f2.5 ....

i've bought a super - multi - coated takumar 135 f2.5 screw mount with the series number : 6616723, how i can know it version? some body told me version 1 is the best. how about this version 2? thank !!!
05-24-2008, 03:12 PM   #52
Senior Member




Join Date: Apr 2007
Location: Barbados
Photos: Gallery
Posts: 270
I just bid 31 dollars on a Takumar 135mm f/2.5 on ebay.

Last edited by anomaly; 05-24-2008 at 03:18 PM.
05-24-2008, 04:06 PM   #53
Veteran Member
danielchtong's Avatar

Join Date: Jul 2007
Location: Toronto
Posts: 754
QuoteOriginally posted by anomaly Quote
I just bid 31 dollars on a Takumar 135mm f/2.5 on ebay.

Well . I can manage using film to shoot DA200mm to get the FoV of a 135mm. Nah. That reminds me to use my FA135mm more instead.
We have been dealing with it (shortage of some key FL). 70-200mm being the most acute one as there is a premium of $200-300 to get a used Sigma lens.

Daniel

05-24-2008, 09:59 PM   #54
Forum Member




Join Date: Mar 2008
Posts: 68
QuoteOriginally posted by anomaly Quote
I just bid 31 dollars on a Takumar 135mm f/2.5 on ebay.
I read from somewhere that one should avoid the K-mount Takumar (Bayonet) 135mm f2.5. This is because its has no or single coating and hence suffers from flares. This lens has "Takumar (Bayonet)" marking on the lens barrel, instead of the usual marking on the lens rim.

The better choice would be Super Takumar M42 mount 135mm/f3.5.

Good luck!
05-24-2008, 10:26 PM   #55
Veteran Member
frank's Avatar

Join Date: Nov 2006
Location: Singapore
Photos: Gallery
Posts: 3,202
QuoteOriginally posted by fastfood Quote
i've bought a super - multi - coated takumar 135 f2.5 screw mount with the series number : 6616723, how i can know it version? some body told me version 1 is the best. how about this version 2? thank !!!
Actually there are three version of Takumar 135/2.5 lens in M42 mount. The first version is the Super Takumar 135/2.5 which doesn't have Super Multi Coating (but some reported the later product batch might have too), the second version is Super-Multi-Coated Takumar 135/2.5 with a production code of 43802 (it's at the bottom of the lens, marked on the A/M or Auto/Manu switch). The third version is also Super-Multi-Coated Takumar 135/2.5 w/ a production code of 43812. The second version has a 4 elements in 4 groups optical design while the third one has a 6 elements in 6 groups design.

All these three versions are excellent, the third one (6 elements in 6 groups) is reported to be the best among all three.

The later SMC K 135/2.5 (also 6 elements in 6 groups) is reported to have the same optical design as the last S-M-C Takumar 135/2.5.

You can see more Takumar lens types here:
View all Takumar lens types
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, mm, pentax, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fixed aperture manual lens help Joe Troubleshooting and Beginner Help 7 09-01-2010 10:38 PM
Looking for a general-purpose, bright, fixed f lens Fallingwater Pentax SLR Lens Discussion 8 03-04-2010 09:40 PM
Freebee lens fixed! ismaelg Pentax SLR Lens Discussion 6 09-26-2009 07:20 AM
A Pentax fixed/calibrated DA* 16-50mm lens? nicedog Pentax SLR Lens Discussion 0 08-17-2008 11:17 PM
1 everyday fixed lens: advice requested arthur pappas Pentax DSLR Discussion 23 01-24-2008 05:12 PM



All times are GMT -7. The time now is 07:51 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