Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-05-2019, 09:26 AM - 1 Like   #16
Otis Memorial Pentaxian
Loyal Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 39,144
QuoteOriginally posted by pres589 Quote
Why are people talking about the M 50 f2 when it's not it the OP's post at the top of the thread? He's asking about the Takumar 55mm f2.
Ooops!

06-05-2019, 09:47 AM - 4 Likes   #17
Pentaxian
Ontarian50's Avatar

Join Date: Mar 2015
Posts: 527
1.4's are cool, and everyone knows it
06-05-2019, 09:50 AM - 1 Like   #18
Site Supporter
Site Supporter




Join Date: Dec 2012
Location: Essex, Ontario
Posts: 664
I have all these and many more so the "one 50mm" issue made me think a bit. Generally I have to agree with the f1.7 answer for most purposes. Although if you're in very low light a lot and like a little longer lens barrel with a bit more mass to hold the f1.4 may have a better feel. That 1.7 lens is almost like a pancake and little difficult for anyone with larger hands to use sometimes. The tak rendering could be appealing for some shots but if it was your only 50 you could find the K adapter a bother.

---------- Post added Jun 5th, 2019 at 12:54 ----------

QuoteOriginally posted by Ontarian50 Quote
1.4's are cool, and everyone knows it
Or...just find a f1.2 - very cool.
06-05-2019, 10:53 AM   #19
Bui
Site Supporter
Site Supporter




Join Date: Nov 2016
Photos: Gallery
Posts: 308
Looks like the M50 1.7 has a lot of good reviews. I have the F50 1.7, is it optically the same as the M?

06-05-2019, 11:14 AM - 1 Like   #20
Loyal Site Supporter
Loyal Site Supporter
steamloco76's Avatar

Join Date: Feb 2014
Location: Pennsylvania
Photos: Gallery
Posts: 1,435
Ive owned two f1.7s, A and M, plus the f1.4 M. Both f1.7 lenses were far superior in every optical way to my copy of the f1.4 lens. I wish Id kept one of the f1.7s
06-05-2019, 12:36 PM - 2 Likes   #21
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 12,606
QuoteOriginally posted by thisisforlife Quote
Hi guys

If you had to keep only one 50mm lens which one would it be.

I have the:
smc pentax-m 1.4 50mm, smc pentax-m 1.7 50mm and the smc Takumar f2 55mm.

I can't keep them all and don't see any reason to.

Which one would you keep?

Thanks for the help.

Dirk
I have all of them as well. If I had to choose one, I would keep the 50/1.4. The 1.7 is the somewhat better lens, but the 1.4 is a 1.4.
06-05-2019, 01:23 PM   #22
New Member




Join Date: May 2019
Location: Antwerp
Posts: 14
Original Poster
We all know Ken (one way or the other) but it also seems to be the general opinion on this forum as well.

https://kenrockwell.com/pentax/35mm/lenses/50mm-f17-smc-m.htm
06-05-2019, 01:50 PM - 1 Like   #23
Site Supporter
Site Supporter
pres589's Avatar

Join Date: Jan 2014
Location: Baltimore, MD
Photos: Albums
Posts: 3,395
QuoteOriginally posted by Wheatfield Quote
I have all of them as well. If I had to choose one, I would keep the 50/1.4. The 1.7 is the somewhat better lens, but the 1.4 is a 1.4.
No compute.

06-05-2019, 03:33 PM - 1 Like   #24
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 12,606
QuoteOriginally posted by pres589 Quote
No compute.
It's around a half stop faster. I found the f/1.4 to be a much better lens at f/1.4…
The f/1.7 is a tiny bit better from f/1.7 to around f/4, and after that there isn't much to say between them. The 1.4 handles better, I found the 1.7 to be too short.
06-05-2019, 03:50 PM - 1 Like   #25
Loyal Site Supporter
Loyal Site Supporter
monochrome's Avatar

Join Date: Mar 2008
Location: Working From Home
Photos: Gallery | Albums
Posts: 26,258
I need the extra light of the f/1.4 for focusing. Since the 1.4 catches up with the 1.7 around f/4, you’re trading a extra 1/2 stop at the wide end a for bit of sharpness and flatness to f/4. It’s a matter of preference.

Last edited by monochrome; 06-05-2019 at 04:32 PM.
06-05-2019, 07:17 PM - 1 Like   #26
MSL
Pentaxian
MSL's Avatar

Join Date: Feb 2012
Location: Greater Toronto Area
Photos: Albums
Posts: 4,055
QuoteOriginally posted by Wheatfield Quote
I have all of them as well. If I had to choose one, I would keep the 50/1.4. The 1.7 is the somewhat better lens, but the 1.4 is a 1.4.
I have the M50/1.4 and A50/1.7 and at least two or three 50 or 55 Taks. When I want to experiment, the M50/1.4 gives me more potential, but if I could only choose either of the K mount lenses, I'd probably stick with my A50/1.7 because I can trust it wide open, both for its own sharpness, and the likelihood I *might* get things into focus. I took the Taks out of the equation, because I consider all my m42 lenses things I experiment with when I feel like playing around with adapters, extension tubes etc etc.
06-05-2019, 09:12 PM - 1 Like   #27
Site Supporter
Site Supporter
pres589's Avatar

Join Date: Jan 2014
Location: Baltimore, MD
Photos: Albums
Posts: 3,395
If we're talking film, that 1/2 step faster f-stop is worth it at times. On digital, eh, I don't see it. I find the M 50 1.7 easy to manipulate even if it is about a centimeter shorter than the M 50 1.4.

To each his own, of course.
06-06-2019, 11:42 AM - 1 Like   #28
Pentaxian
Wasp's Avatar

Join Date: Mar 2017
Location: Pretoria
Photos: Gallery
Posts: 3,413
This is a tough question. The Tak is becoming collectable. The M/1.4 is great for low light and bokeh portraits. The M/1.7 is easier to focus and very sharp.

I would say keep the M/1.7. It is a great all rounder.

On a strictly financial note, the M/1.7 is probably the least valuable of the three. The other two will fetch better prices.
06-06-2019, 05:09 PM - 1 Like   #29
Pentaxian
Wheatfield's Avatar

Join Date: Apr 2008
Location: The wheatfields of Canada
Posts: 12,606
QuoteOriginally posted by MSL Quote
I have the M50/1.4 and A50/1.7 and at least two or three 50 or 55 Taks. When I want to experiment, the M50/1.4 gives me more potential, but if I could only choose either of the K mount lenses, I'd probably stick with my A50/1.7 because I can trust it wide open, both for its own sharpness, and the likelihood I *might* get things into focus. I took the Taks out of the equation, because I consider all my m42 lenses things I experiment with when I feel like playing around with adapters, extension tubes etc etc.
I feel the same way about the A 50/1.4. Of all my manual focus 50s, I like it's pictures the best. Of course now that I have the
D FA* 50....
06-06-2019, 05:29 PM - 1 Like   #30
Loyal Site Supporter
Loyal Site Supporter
monochrome's Avatar

Join Date: Mar 2008
Location: Working From Home
Photos: Gallery | Albums
Posts: 26,258
QuoteOriginally posted by Wheatfield Quote
I feel the same way about the A 50/1.4. Of all my manual focus 50s, I like it's pictures the best. Of course now that I have the
D FA* 50....
Yes. Ive held on to the A50/1.4 as well (but not the M, dupe Taks, dupe Ks, the F and FA50/1.4) since the DFA appeared on my desk last summer.
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!
50mm, 55mm, bit, f2, k-mount, lens, pentax lens, pentax-m, slr lens, smc
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
If you could keep only one, which one and why? Ketsuppi11 Pentax SLR Lens Discussion 9 12-14-2017 10:57 AM
For Sale - Sold: SMC Macro Tak 50mm f/4.0, SMC Tak 28mm f/3.5, Super-Tak 35mm f/3.5 hinman Sold Items 19 06-28-2016 07:15 PM
For Sale - Sold: Takumars: SMC 85/1.8, SMC 24/3.5, Auto-Tak 85/1.8, Tak 35/3.5, Tak 28/3.5 NomNamNom Sold Items 10 06-24-2016 07:37 PM
For Sale - Sold: Pentax DA 12-24mm f/4, 50mm M f1.4, Tak. 135mm f2.5, Tak. M42 55mm f1.8 (US) DenverDutchman Sold Items 2 11-25-2010 10:06 AM
For Sale - Sold: SMC Tak 150mm/4, SMC Tak 135mm/3.5, Super Tak 55mm/2 and extras pdxbmw Sold Items 8 09-10-2009 10:54 AM



All times are GMT -7. The time now is 11:52 PM. | 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