Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-21-2012, 04:28 PM   #1
Junior Member




Join Date: Sep 2010
Location: Pennsylvania
Posts: 42
Pentax 50mm - please read if you own one.

I have an old Sears 50mm f1.7. I think it's pretty sharp compared to other old lenses I have.

I'm thinking of upgrading my Sears to a Pentax.

Problem is there's MANY 50's out there under the Pentax review database:

M 50mm F1.7
FA 50mm F1.4
A 50mm F1.7
M 50mm F1.4
F 50mm F1.7
A 50mm F1.2
A 50mm F1.4
FA 50mm F1.7
SMC Pentax 50mm F1.2
SMC Pentax 50mm F1.4
F 50mm F1.4
DA 50mm F1.8

If you own one of these, would you recommend the model you have?
I'm looking for a sharp lens. I've heard the M50 f1.4 is pretty sharp?


08-21-2012, 04:35 PM   #2
Pentaxian




Join Date: Feb 2011
Location: California
Photos: Gallery | Albums
Posts: 571
I love my K50 f/1.2, as when you get a person in focus @ f/1.2, it will blow your find. I find that by f/4, it's as sharp as a macro, so I try to not go above f/8 with it. I think that the K50 f/1.2 even rivals the cheaper Sears 55 f/1.4 in sharpness @ f/1.4. I am selling my sharp copy of the Sears 55 f/1.4 due to having LBA and wanting to experience the speed and otherwordly character of a f/1.2. The only downside to the f/1.2 is that it's a pain to focus @ f/1.2 unless you use LV, but the results are worth it.
08-21-2012, 04:45 PM   #3
Senior Member
Kona's Avatar

Join Date: Aug 2011
Location: Victoria
Photos: Albums
Posts: 202
I have an A50 1.7 and now a D-FA 50 2.8, I love both. The colours the A50 delivers are really quite unique compared to all of my digital era lenses, but I find manual focus a bit of a pain. Optically, it is superb, though. Definitely recommend it for the cheaper realm of older standard lenses. My D-FA cost almost 4x as much, though I favour it for closer focusing ability, and AF.

Most any of the fast 50s will be good, though I've heard the 1.4 is a little weak compared to the 1.2 and 1.7. The new DA 1.8 is reportedly the same optics as the older 1.7s (which were allegedly closer to 1.8 speed than 1.7, so the new version has been renamed accordingly). But given how common K/M/A 50s are on the marketplace here, I think you should try to get a 1.7, if you can't afford the 1.2.
08-21-2012, 04:45 PM   #4
Senior Member




Join Date: Jul 2012
Location: SW Florida
Posts: 234
I have the Sears f1.7,M f1.7,A f2 and have had the F 50 f1.7 which I sold.I can't tell much difference in any of them.

08-21-2012, 05:30 PM   #5
Pentaxian




Join Date: Sep 2009
Location: Southern California
Photos: Gallery | Albums
Posts: 3,181
Other than the DA50/1.8, I've had virtually all of these (or the next/previous-series equivalent e.g. K50/1.2 instead of A50/1.2). I still have K50/1.2, A50/1.7, and F50/2.8 macro, so that may say something. F50 macro is the least used since I have DFA 100 WR macro.

K50/1.2 is the best overall. A50/1.7 has nice colors, sharpness, and is a great value.

The best AF 50's are actually the DA*55 and FA43. The F50/1.4 is the best AF lens of the true 50's and is rather nice, but is still a noticeable step down from the FA43, so I sold it.



The DA*55 is the only lens (of all these non-macro lenses mentioned here by either you or me) that gives nearly maximum IQ and obvious sharpness when wide open (the K50/1.2 is more about beautiful bokeh, while the DA*55 is more about everything else).

So your short list, roughly in order of increasing cost, should be:

A50/1.7 (or F50/1.4 if you must have AF)
K50/1.2
FA43
DA*55

Any of these is adequate in its own right, but all have distinctly different "personalities," so you must choose the one(s) you like.


Just a quick note on the AF 50's: It can be "kind-a fun" comparing them. For some reason, my FA50/1.7 really was slightly better than my F50/1.7, and my F50/1.4 was better than anything I saw shot with others' FA50/1.4s. I don't know why, except that the F50/1.4 shared most of the same great qualities that A and F glass often hold in common. But then if you get an FA43, you'll sell them all and forget the whole thing. So unless you think this would be fun, or insist on keeping the price lower, save youself lots of time and take a shorter route.

Last edited by DSims; 08-21-2012 at 05:49 PM.
08-21-2012, 05:32 PM   #6
Veteran Member
DaveHolmes's Avatar

Join Date: Jul 2010
Location: Yorkshire
Posts: 1,501
I've have or have had: M50-f2, M50-1.7, M50-1.4 (have 2 copies both equally good) A50-1.7 and finally FA50-1.4...

The M50-f2 is a dog... It was my first prime and I've had a couple now (with cameras I've aquired) but let them go quickly...

All the others (particularly the M50-1.4's) are great but if I had to choose one it'd be the FA50-1.4 hands down... IMO as good as the 'M' in IQ but the AF makes it much more usable.

However... I would add the DA*55-1.4 to your list of possibilities as well... The images I've seen from it look truly stunning...
08-21-2012, 05:35 PM   #7
Pentaxian
ducdao's Avatar

Join Date: Dec 2009
Location: Montreal/Vermont
Posts: 2,160
If you want a sharp and cheap and you can live with MF go for the M50/1.7, it's the best bang for the bucks out there.
If you want sharp and AF and have money to burn, go with DA* 55/1.4
If you have money to burn, go with A50/1.2
08-21-2012, 05:41 PM   #8
Pentaxian
Sagitta's Avatar

Join Date: Feb 2011
Location: Maine
Photos: Gallery
Posts: 2,939
FWIW, I have two seperate Sears 50mm f/1.7's of different make. Both are razor sharp. If you're uprgading from them, I'd at least get an A-lens if not an AF lens unless you're grabbing a 1.2 or 1.4.

08-21-2012, 05:43 PM   #9
Loyal Site Supporter
baro-nite's Avatar

Join Date: Aug 2011
Location: North Carolina, USA
Photos: Gallery | Albums
Posts: 4,364
You can simplify your search by considering that all the Pentax 50/1.7 versions are based on the same optical formula; same goes for the Pentax 50/1.4 (and likewise for the two versions of 50/1.2). There have been improvements to the coatings and minor optical tweaks over time, but the old versions stand up beautifully. So in part it comes down to how much you value the A setting, autofocus, and aesthetics and build quality. Value king has got to be the M50/1.7, an excellent sharp lens that can be found for under US$50. The K 55/1.8 and 55/2 are also well worth considering -- 55mm is an especially nice FL for portraits on Pentax APS-C.

On the other hand, your Sears lens might be just about as good. Don't be fooled by the brand; these were manufactured by reputable lens companies.
08-21-2012, 05:59 PM   #10
Veteran Member
creampuff's Avatar

Join Date: May 2007
Location: Singapore
Photos: Gallery
Posts: 3,955
I actually recommend the new DA 50mm f/1.8. Not only is it cheap and has AF but the feel of the focusing ring when manual focusing is one of the best out there...so well damped. Seriously!
08-21-2012, 06:00 PM   #11
Veteran Member
Docrwm's Avatar

Join Date: Sep 2010
Location: Somewhere in the Southern US
Photos: Gallery | Albums
Posts: 11,275
I own the ST50/1.4, 55/1.8, M50/2, M50/4 Macro, and FA50/1.4 and have used a few others. The rendering of the ST50/1.4 is really nice but the combinstion of adapter and MF make it far less used. The M50 Macro is used the most because MF is easier when doing static macro work and its a gem. The FA50 is sharp and great in low light but MUST have a hood or contast and general IQ suffer (its front element is SO much more exposed than any of the 1.7s). 1.2s have their mystique, and the price to goalong with them, but the A50/1.7s seem to be the best compromise among the MF 50s. With the hood the FA50/1.4 is fast, renders nicely, and has good overall performance.
08-21-2012, 06:07 PM   #12
Veteran Member
mickey's Avatar

Join Date: Oct 2008
Location: Japan
Photos: Gallery | Albums
Posts: 1,074
I can only comment on the SMC Pentax 50 1.4 and say its superb.
Tough choice from the ones listed cus I think everyone will have their favourite.
The 50 1.7 does seem spoken of in high regards on here.
08-21-2012, 06:15 PM   #13
Pentaxian
Sagitta's Avatar

Join Date: Feb 2011
Location: Maine
Photos: Gallery
Posts: 2,939
QuoteOriginally posted by baro-nite Quote
On the other hand, your Sears lens might be just about as good. Don't be fooled by the brand; these were manufactured by reputable lens companies.
Echoing this, I can't argue with the quality of either of my Sears 50's. In fact, my Pentax-M 50mm 2.0 is probably the worst of the three 50's I own, mostly because I suspect whoever owned it before me used it as a hockey puck at some point. My Pentax 50 has a very, very oddball quality to it which I think comes from the fact it was obviously abused before I had it.
08-21-2012, 06:42 PM   #14
Junior Member




Join Date: Jun 2010
Location: Pennsylvania
Photos: Albums
Posts: 44
QuoteOriginally posted by mishmatta Quote

If you own one of these, would you recommend the model you have?
I'm looking for a sharp lens. I've heard the M50 f1.4 is pretty sharp?

I have a Sears 50mm f/1.7 myself, as well as the following Pentax 50mm lenses: SMC-M f/2 ; SMC-A f/1.7 ; SMC-M f/1.4.

My Sears 50mm f/1.7 is every bit the equal to the SMC-A f/1.7, except that the Sears lacks the A contacts. And it cost $5 rather than $70.

The SMC-M f/1.4 is sharp stopped down to f/2 and beyond. I use f/1.4 as a "trick" feature, for the bokeh and all that. It's not my sharpest lens wide-open.

The SMC-M f/2 is nothing special; certainly not better than the Sears.

If you have the same model Sears 50mm f/1.7 as I do (which is all metal construction, 52mm filter thread, and reads "AUTO SEARS MC LENS JAPAN 52 1:1.7 50mm" around the front lens element) then you won't find much of an "upgrade" in sharpness by getting a Pentax version.
08-21-2012, 06:44 PM   #15
Pentaxian
audiobomber's Avatar

Join Date: May 2008
Location: Sudbury, Ontario
Photos: Albums
Posts: 6,684
This is a fun read: My Favorite Lens
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, f1.2, f1.4, f1.7, fa, k-mount, pentax, pentax 50mm, pentax lens, sears, slr lens, smc
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
50mm f1.2 (you read that right) being sold on Kijiji Canada bdery Pentax Price Watch 2 10-06-2011 12:39 PM
Image read the Pentax K10D Maganta1978 Pentax DSLR Discussion 2 07-03-2011 12:14 PM
For Sale - Sold: Pentax F 50mm 1.7 Please read. jjdgti Sold Items 3 04-25-2011 11:16 AM
Dilemna: Selling my A 50mm f/1.2 to fund a K-5?!? (Read before voting) jayp Pentax SLR Lens Discussion 16 02-15-2011 01:03 AM
For Sale - Sold: Pentax FA 28-70mm F4 - read (Worldwide) slawek Sold Items 3 02-10-2011 05:22 PM



All times are GMT -7. The time now is 01:48 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