Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-18-2010, 04:56 PM   #61
Veteran Member




Join Date: Jul 2009
Posts: 1,296
QuoteOriginally posted by Marc Sabatella Quote
Samyang is still putting out new manual focus DSLR lenses - the 85 being the most popular current example, but there are other too, with other still that have been announced.
I stand even more corrected.

Surely anything that covers 12-60mm (if that is even possible) is going to be severely handicapped optically.

03-18-2010, 05:36 PM   #62
Veteran Member
Abbazz's Avatar

Join Date: Nov 2006
Location: Myanmar
Posts: 524
QuoteOriginally posted by Marc Sabatella Quote
Samyang is still putting out new manual focus DSLR lenses - the 85 being the most popular current example, but there are other too, with other still that have been announced.
And don't forget Cosina/Voigtländer and Zeiss. I would say that it is likely that we will see many more manual focus lenses in the near future...

Cheers!

Abbazz
03-18-2010, 05:39 PM   #63
Veteran Member
Abbazz's Avatar

Join Date: Nov 2006
Location: Myanmar
Posts: 524
QuoteOriginally posted by Marc Sabatella Quote
A 12-60/2.8 - you do realize that such a lens would probably weigh over 5 pounds?
QuoteOriginally posted by CWyatt Quote
Surely anything that covers 12-60mm (if that is even possible) is going to be severely handicapped optically.


Hey, maybe it's time to switch to the dark side of the force :

The resolution characteristic of the Olympus 12-60mm is very impressive. At large aperture settings the center performance is excellent throughout the range. The border and performance is generally very good.

The 12-60mm f/2.8-4 ED SWD is a surely a worthy representative matching the high expectations. It produces very sharp and contrasty images throughout the range. Vignetting, distortions and lateral chromatic aberrations (CAs) are all well controlled for a standard zoom lens.

Quoted from Olympus Zuiko Digital 12-60mm f/2.8-4 ED SWD Review / Test Report - Analysis

Cheers!
03-18-2010, 06:23 PM   #64
Veteran Member




Join Date: Jul 2009
Posts: 1,296
QuoteOriginally posted by photozone:
(equivalent to 24-120mm on full format (35mm) DSLRs)
So it's a quite wide to moderate tele lens, and f/4 on the tele end.

12mm on a Pentax DSLR is 18mm (35mm equivalent), with the associated difficulties in design/performance. A super-wide to standard or tele zoom produces a lot more difficulties. There is already the Pentax 16-50mm f/2.8 (24-75mm equivalent).


Last edited by CWyatt; 03-18-2010 at 06:31 PM.
03-18-2010, 07:32 PM   #65
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by Abbazz Quote
[I]The resolution characteristic of the Olympus 12-60mm is very impressive.
The Oly 12-60 is for 4:3 systems, not APS-C. The sensor is half-sized, the same as 110 film (remember the Pentax 110 SLR?) The image circle is much smaller -- APS-C frame diagonal is 30mm, 4:3 is under 22mm. It's a whole different ball game.
03-18-2010, 09:13 PM   #66
Veteran Member
Abbazz's Avatar

Join Date: Nov 2006
Location: Myanmar
Posts: 524
QuoteOriginally posted by CWyatt Quote
So it's a quite wide to moderate tele lens, and f/4 on the tele end.

12mm on a Pentax DSLR is 18mm (35mm equivalent), with the associated difficulties in design/performance. A super-wide to standard or tele zoom produces a lot more difficulties. There is already the Pentax 16-50mm f/2.8 (24-75mm equivalent).
QuoteOriginally posted by RioRico Quote
The Oly 12-60 is for 4:3 systems, not APS-C. The sensor is half-sized, the same as 110 film (remember the Pentax 110 SLR?) The image circle is much smaller -- APS-C frame diagonal is 30mm, 4:3 is under 22mm. It's a whole different ball game.
I was only joking about the Olympus 12-60! I am well aware that the Olympus 12-60 would not cover the APS-C format of a Pentax DSLR and I know very well the size of the 4/3rds sensor, since I own an Olympus E-P1. As for its sensor being "half-sized," it depends what you compare it to... A while back, when 6x9 was the regular "small size" negative, 24x36 was considered a miniature format not really suitable for any "serious" work...

Cheers!

Abbazz

Last edited by Abbazz; 03-18-2010 at 09:29 PM.
03-18-2010, 09:22 PM   #67
Pentaxian




Join Date: Nov 2007
Location: Western Canada
Posts: 4,072
I would like to see Pentax bring out the following lenses:
  • 10-16 mm Wide Angle F 2.8...very similar, I know to the Tokina
  • 400 mm or 500 mm F 5.6 lens..very similar to the Canon L 400 mm F 5.6
  • 12 mm F 2.8 Prime wide angle...I don't think Pentax needs both a 14 mm and a 15 mm lens...drop one and replace with a 12 mm...as described

All of excellent quality and at a fair price for the consumer.
03-18-2010, 09:59 PM   #68
Veteran Member
clawhammer's Avatar

Join Date: Sep 2007
Location: Logan, Utah
Photos: Gallery
Posts: 976
My dream lens is a fast da 35, with WR and SDM. a walkaround setup for (almost) any condition. My other (and probably more sought after) dream lens would be a wide WR prime, like the 12mm mentioned before. At that angle, I'd settle for an f/4 to keep the size down. And while I never really shoot portraiture, a da/fa * 85/1.4 would be money and on my want list, even though I'd never use it.

QuoteOriginally posted by stevebrot Quote
My dream lenses right now are a little outside those listed above. Those in the know will have a hint as to what direction I have been heading:
  • Nikkor SW 65/4
  • Caltar IIN 90/6.8 or Schneider Super-Symmar XL 110/5.6
  • Fujinon CM-W 150/5.6 or Nikkor W 150/5.6
In all likelihood, the Caltar 90 is the starting point followed by the Nikkor 65.


I have the caltar, but unfortunately haven't had the time to really put it through it's paces. It seems to be a good lens, lots of room for movements, but it can be a little dark in the corners for focusing. As long as you've got a good loupe, you're in business. Which body do you have?

03-18-2010, 10:01 PM   #69
Moderator
Site Supporter
Blue's Avatar

Join Date: Jun 2008
Location: Florida Hill Country
Photos: Gallery | Albums
Posts: 17,211
QuoteOriginally posted by Abbazz Quote
I was only joking about the Olympus 12-60! I am well aware that the Olympus 12-60 would not cover the APS-C format of a Pentax DSLR and I know very well the size of the 4/3rds sensor, since I own an Olympus E-P1. As for its sensor being "half-sized," it depends what you compare it to... A while back, when 6x9 was the regular "small size" negative, 24x36 was considered a miniature format not really suitable for any "serious" work...

Cheers!

Abbazz
Any 110 or 16mm format would be considered a miniature format in anyone's evaluation.
03-19-2010, 12:53 AM   #70
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by Abbazz Quote
As for its sensor being "half-sized," it depends what you compare it to...
APSC: 25.7mm x 16.1mm = 419mm^2
m4:3: 17.3mm x 13.0mm = 225mm^2
m4:3 / APS-C area = 0.54 ~= half-size

QuoteQuote:
A while back, when 6x9 was the regular "small size" negative, 24x36 was considered a miniature format not really suitable for any "serious" work...
And this has changed?

[/me loads another roll of Efke IR 820 into /me's faithful KW Patent-Etui 6x9]
[/me transfers last roll of Velvia RPV120 to 620 spool for Kodak Monitor 6x9]
[/me stuffs 135 cart of Superia 100 into Brownie for hip sprocket-hole panos]
[/me eases off, loads 135 cart of FortePan 100 into ZX-M, hears motor sing]
[/me recalls that 6x9 was the standard "small size" before WWII, not since]
[/me thinks maybe a Holga would be easier than the Patent-Etui & Monitor]
[/me sighs, dreams of sniffing darkroom chemicals, long hours in darkness]
[/me resumes capturing & torturing images digitally, like any modern nerd]

ADDENDUM:
QuoteOriginally posted by Blue Quote
Any 110 or 16mm format would be considered a miniature format in anyone's evaluation.
110: 17mm x 13mm = 221mm^2 ~= m4:3
110 area / APS-C area = 0.53 ~= half-size

16: 10.26 x 7.49mm = 76.86mm^2 = teensy
s16: 12.52 x 7.41mm = 92.77mm^2 = weensy
u16: 11.66 x 7.49mm = 87.33mm^2 = meensy

Last edited by RioRico; 03-19-2010 at 01:30 AM. Reason: addendum
03-19-2010, 04:35 AM   #71
Pentaxian
audiobomber's Avatar

Join Date: May 2008
Location: Sudbury, Ontario
Photos: Albums
Posts: 6,676
Pentax NEEDS a longer lens than the 300mm. When will they fill that hole? Probably right after I give up and buy a Sigma.

Last edited by audiobomber; 03-19-2010 at 09:10 AM.
03-19-2010, 08:06 AM   #72
Veteran Member




Join Date: Jan 2009
Location: National Capital Region
Posts: 738
QuoteOriginally posted by CWyatt Quote
Surely anything that covers 12-60mm (if that is even possible)
My dream for that lens was indeed a direct result of the Olympus 12-60mm, albeit at f2.8 constant aperture.
03-19-2010, 12:05 PM   #73
Inactive Account




Join Date: Jul 2008
Location: Vancouver, Canada
Posts: 1,104
I'd like a DA 35-135mm f/4, no SDM. It's not really a dream lens, just a great walk around.

Last edited by ajuett; 03-19-2010 at 12:12 PM.
03-19-2010, 09:00 PM   #74
Site Supporter
Nick Siebers's Avatar

Join Date: Jun 2008
Location: Madison, WI
Photos: Gallery | Albums
Posts: 2,152
Here's my dream:

M 35/1.4

Hey, make it WR and let it do macro, and I might never take it off.
03-20-2010, 05:43 AM   #75
Veteran Member
rustynail925's Avatar

Join Date: Aug 2009
Location: Philippines
Photos: Gallery
Posts: 1,552
if 12-60mm f2.8 is impossible..
Maybe 16-50 f2.8 optically improve w/ no sdm and lowered price
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!
da70, dream lens, f/2.8, hood, k-mount, lens, love, pentax, pentax lens, primes, size, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Dream Trip - Which Dream Lens? sealonsf Pentax SLR Lens Discussion 8 03-19-2010 05:27 PM
Finally a dream lens... Igilligan Pentax SLR Lens Discussion 24 09-13-2009 03:26 AM
Dream Lens ... frank Pentax SLR Lens Discussion 15 07-30-2008 07:52 PM
My dream lens, literally. Buddha Jones Pentax SLR Lens Discussion 12 05-06-2008 07:22 AM
What is your favorite/dream lens? lastdodobird Pentax SLR Lens Discussion 43 03-11-2008 03:38 PM



All times are GMT -7. The time now is 10:12 AM. | See also: NikonForums.com, CanonForums.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