Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-15-2009, 09:54 PM   #1
Junior Member




Join Date: Jun 2009
Location: Dallas, TX
Photos: Albums
Posts: 26
Can the SDM 2.8f 16-50 replace the prime 1.4f?

Hello everyone,

I have a Pentax 50 1.4f prime. The one that costs between $200-250.

I have been reading up on the 16-50 f2.8 DA* and have been very impressed by it. Do you think this DA* 2.8f lens can replace my prime? I have a kit lens for my K10 and this prime, but I'm thinking about selling both of these lenses to upgrade to the 16-50 2.8f DA* to replace both lenses. Can this work? I take lots of indoor photography and thought this DA* lens can relieve my lens changing.

06-15-2009, 10:15 PM   #2
Veteran Member
dugrant153's Avatar

Join Date: Oct 2007
Location: Vancouver, BC
Photos: Gallery
Posts: 1,059
Umm... I guess it depends on what you want to do. But I'm going to say no.

The DA*16-50 is a great versatile lens and the ability to zoom can be very handy in a lot of places. That being said, it's only F2.8 and has a different way of rendering pictures than the FA50 F1.4 does.

If you're comfortable with shooting at F2.8 and nothing lower, than the DA*16-50 is a fine piece of glass. Just make sure you get a good one as some are reported to be quite soft at F2.8

If you need to go lower than F2.8, keep your FA50.

Hope that helps!
06-15-2009, 10:25 PM   #3
AM2
Forum Member
AM2's Avatar

Join Date: Jun 2009
Location: Vancouver, BC
Posts: 87
QuoteOriginally posted by swhang Quote
Hello everyone,

I have a Pentax 50 1.4f prime. The one that costs between $200-250.

I have been reading up on the 16-50 f2.8 DA* and have been very impressed by it. Do you think this DA* 2.8f lens can replace my prime? I have a kit lens for my K10 and this prime, but I'm thinking about selling both of these lenses to upgrade to the 16-50 2.8f DA* to replace both lenses. Can this work? I take lots of indoor photography and thought this DA* lens can relieve my lens changing.
Short answer: no.

Long answer: Especially not with the K10D and even more importantly if you do a lot of indoor shooting. I have a K10D and when I am hired to do shoots indoors with limited light, I have two choices, my DA*16-50/2.8 with the AF540 flash or when the flash is not an option I use a set of primes, DA14, FA31, FA50 and FA77. Long story short, if you get the DA*16-50/2.8 to use with your K10D, you'll need a flash as well for indoors, as F2.8 isn't enough unless you bump the ISO really high, which on the K10D can make a *lot* of noise, plus you can't go beyond the unusable ISO1600 mark anyway.

HTH

-AM
06-15-2009, 11:22 PM   #4
Veteran Member
krypticide's Avatar

Join Date: Dec 2007
Photos: Gallery
Posts: 1,079
I have a DA* 16-50mm and it definitely won't be replacing the 50 f/1.4. However, I am considering getting rid of my 35mm f/2...

06-16-2009, 12:39 AM   #5
Nubi
Guest




In my opinion, a zoom can almost NEVER replace a prime lens.
06-16-2009, 03:38 AM   #6
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,695
the fast fifty simply can't be replaced, unless you prefer it a little longer, which the 77ltd would be better.

the 16-50 is very good, but at 50mm, the 50/1.4 in my mind not only produces stellar images but it has the extra versatility of being opened up to f/2.0, and is razor sharp there.
06-16-2009, 09:38 AM   #7
Pentaxian
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
If your reason for asking is that you are thinking of selling the 50 to help fund the purchase, I'd say, go ahead - but keep $30 of the proceeds to buy an M50/1.7 to take its place, so you are not *completely* out of luck when you need an aperture larger than f/2.8. Personally, I do a ton of indoor low light shooting at f/2.8 and very rarely bother using my A50/1.7, but I'm glad to have it for the few situations where I really *need* to go beyond f/2.8.

That's all assuming you're OK with the 16-50 as your go-to lens in other respects. I wouldn't be - not for any alleged QA issues, but simply because it is so much larger than the lenses I prefer using (DA40, M28/2.8). So that would be another reason to want to hang on to a 50 - although that focal length is not my favorite, which is why I use my 28 & 40 *far* more often.
06-16-2009, 10:19 AM   #8
Veteran Member




Join Date: Jan 2008
Location: Southern California, USA
Photos: Gallery
Posts: 730
Marc,
What do you use your 28 & 40 mostly to shoot for?
I have F28/2.8 and FA 43 Ltd for light combo plus FA50/1.4 + Tamron 1.4x TC as a replacement for DA70 :P
I found myself hardly use my F28/2.8 anymore after getting the 16-50


For the OP:
Since I got DA*16-50, I hardly use these prime combos as often. Interestingly, when I do a serious photo session, I found out that I use the FA43 Ltd more often. For the best IQ, nothing can beat a prime like the Limited.
And if you often shoot in dim lighting, like me, my FA50/1.4 or FA43 get used more often than 16-50.
So if you like traveling, the 16-50 is your best choice. It's versatile and you'll get a Weather Sealed combo w/ K10D in case you like going to the beach or rain forest.
But if you like shooting portrait only, don't sell your 50/1.4 yet.

06-16-2009, 10:21 AM   #9
Veteran Member
vizjerei's Avatar

Join Date: May 2007
Location: Toronto
Photos: Gallery
Posts: 1,418
QuoteOriginally posted by krypticide Quote
I have a DA* 16-50mm and it definitely won't be replacing the 50 f/1.4. However, I am considering getting rid of my 35mm f/2...
Really? I always find myself using 35 since 50 is usually to long for indoor..


Anyways, for f2.8 or 1.4 question, it really depends on if you want to go into the higher ISO zone for indoor and low light situation.
06-16-2009, 10:40 AM   #10
Pentaxian
Marc Sabatella's Avatar

Join Date: Sep 2006
Location: Denver, CO
Photos: Gallery
Posts: 10,686
QuoteOriginally posted by HermanLee Quote
Marc,
What do you use your 28 & 40 mostly to shoot for?
Both focal lengths are versatile enough that it's tough to pigeonhole them, but one very typical use for the 28 I'd characterize as a shot of a setting with a person in it, whereas the 40 is for a shot of a person with a setting around him/her. That is, both will show some amount of a person and some amount of the setting, but being wider, the 28 will place more emphasis on the setting; while the 40, being longer, places more emphasis on the person. Of course, a 50 places even more emphasis on the person than 40, but too often I found myself having to step back to get any setting at all, which was the main thing that prompted the purchase of the 40 after several years of a 50 as my only "candid" prime. Conversely, a 21 would capture more setting than 28, but in the brief time I used one, my impression was that it would tend to make the person too anonymous in the frame. Sometimes that's what you want, of course, which is why I haven't ruled out getting one (or the M20/4) at some point.

The 40 gets more use indoors than the 28, because I'm usually more interested in people than settings, but if I enter a setting I'm especially interested in, I switch. Of course, if I'm *only* interested in the setting, I'd be better off with something wider, and in those cases, I might use the 18-55 at 18mm and f/3.5, if I had the foresight to bring it with me. Normally, I leave it at home, though, as I prefer to carry just a handful of faster primes. - the convenience of speed and smaller size is more important to me than the convenience of being able to change focal lengths quickly.

QuoteQuote:
I have F28/2.8 and FA 43 Ltd for light combo plus FA50/1.4 + Tamron 1.4x TC as a replacement for DA70 :P
Whereas I recently got the DA70 as a replacement for my 50+TC :-)

QuoteQuote:
I found myself hardly use my F28/2.8 anymore after getting the 16-50
Actually, in a lot of settings, I'm just as happy to use the 18-55 as the 28, but obviously, it's a stop slower, so I don't tend to go that way indoors. The 16-50 is just much bigger than I'd prefer.
06-16-2009, 10:57 AM   #11
Moderator PEG Judges
Kerrowdown's Avatar

Join Date: Aug 2008
Location: Highlands of Scotland.
Photos: Gallery
Posts: 32,682
Fraid not IMHO , but then I'm just a prime man.
06-16-2009, 12:56 PM   #12
Veteran Member
jsherman999's Avatar

Join Date: Dec 2007
Photos: Gallery
Posts: 8,228
QuoteOriginally posted by Marc Sabatella Quote
If your reason for asking is that you are thinking of selling the 50 to help fund the purchase, I'd say, go ahead - but keep $30 of the proceeds to buy an M50/1.7 to take its place, so you are not *completely* out of luck when you need an aperture larger than f/2.8.

Good plan.



.
06-16-2009, 03:24 PM   #13
Inactive Account




Join Date: Jun 2009
Location: West Michigan
Posts: 11
I am in the same boat. I have the 50 1.4 for low light but I find it too long for a lot of indoor shots.
06-16-2009, 07:57 PM   #14
Forum Member




Join Date: May 2009
Location: Dallas, TX
Photos: Gallery
Posts: 76
Not even close. The 2 stop advantage is huge.
06-16-2009, 09:03 PM   #15
Senior Member




Join Date: Dec 2007
Posts: 188
I use the DA* 16-50 extensively... probably more than any other lens. A while back I did a test of the kit lens, the 50 1.4 and the DA* 50-135. I couldn't tell the difference between the prime and the DA* lens. I got rid of the kit lens.

Having said that, I find some of my best portraits are with the FA 50 1.4 prime. It's just a great lens and I wouldn't get rid of it.

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/38539-da-50-150-vs-50-vs-kit.html
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!
camera, da*, dslr, lens, lenses, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
645D, K-m2 and NEW LENSES DA*10-16/4 SDM, DA*20/2 SDM, DA*28/2 SDM ogl Pentax News and Rumors 165 08-11-2010 03:26 AM
Is there examples of how much to fix/replace the SDM on lenses? Reportage Pentax SLR Lens Discussion 6 04-28-2010 12:58 AM
New 55mm SDM 645D lens means no SDM II? alehel Pentax News and Rumors 11 03-14-2010 09:43 AM
New SDM rear TC, SDM only or SDM + screw drive? morfic Pentax SLR Lens Discussion 1 10-01-2008 08:23 AM
Lens offer from Amazon: DA* 50-135 SDM & DA* 16-50 SDM f8 Pentax SLR Lens Discussion 4 03-25-2008 04:45 AM



All times are GMT -7. The time now is 04:26 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