16 - 45 versus 16 - 50


salixarbour

Link Posted 24/02/2009 - 13:45
Hello all.

Sorry about the 'crude' Topic Title, but I suppose it accurately sums up the dilemma in my little head.

My local Jessops contact (and Pentax owner/advocate) recommended the 16-45 lens some while back. However, we also have the 16-50 lens with its f2.8 aperture and pretty gold ring to consider too. The specifications for the 16-50 lens look very impressive, but there is a huge price difference between the two: 199 v 475.

Also, I notice that the 16-45 has macro capability, and I have no macro lens as yet, so perhaps this might be the humble and prudent choice.

What does the panel recommend?

Kind regards.

Alan Lowe-Jones.
Camera: K20D.
Lenses: Pentax DA* 55mm f1.4 SDM, Pentax DA* 16-50 SDM, Pentax 18-250 SMC DA, Pentax-M 50mm f1.7, Sigma 70-300 F4-5.6 DG macro.
Flash: Pentax AF360.

iceblinker

Link Posted 24/02/2009 - 13:52
16-45 doesn't have macro, and it has almost the same minimum focusing distance as the 16-50.

For something in between the two budgets (and weights), for use with a K20D at least*, I can recommend the Tamron 17-50mm f2.8.

Info and reviews:

http://www.bdimitrov.de/kmp/lenses/zooms/short/index.html

http://www.photozone.de/pentax

http://www.photozone.de/nikon--nikkor-aps-c-lens-tests/290-tamron-af-17-50mm-f28... (Nikon fit verson)

* I had bad AF problems with this lens on my K10D, not with my K20D.
~Pete
Last Edited by iceblinker on 24/02/2009 - 13:52

davex

Link Posted 24/02/2009 - 14:02
Cannot comment on the 16-50 but have used the 16-45 extensively in the last month. It dos`nt have macro focussing but it is a superb lens, The extra 5mm on the 16-50 is probably irrelevent, you can always take an extra step. So for me it would come down to the extra aperture stop, is it realy worth 276? only you can decide that one. For me i would use the saving for a good 50mm prime. Come to think of it that is exactly what i did.
K5 + 8mm-500mm zooms and primes
Please feel free to play with any images I post.
My flickr: link

johnriley

Link Posted 24/02/2009 - 14:28
Also the 16-45mm is smaller and lighter than the 16-50mm.

Quality difference will be virtually irrelevant, only the stop difference in speed is really significant.
Best regards, John

Diatribe

Link Posted 24/02/2009 - 14:30
I thought the 16-50 is weather sealed as well.
K20D and a substantial user manual to wade through

johnriley

Link Posted 24/02/2009 - 14:32
True, the 16-50mm is weather sealed.
Best regards, John

salixarbour

Link Posted 24/02/2009 - 14:33
Thanks, Pete & davex.

Ultimately, I guess my choice may well be the less expensive 16-45 lens, although I will look at the Tamron 17-50mm f2.8 reviews too.

As for the macro specification of the 16-45, which you both probably quite rightly say it doesn't have, would you believe that I got my information from the official Pentax website. Here I downloaded and printed a pdf of the 16-45's specifications! Presumably, it's their mistake? Ooops.

Again, many thanks.

Alan.
Camera: K20D.
Lenses: Pentax DA* 55mm f1.4 SDM, Pentax DA* 16-50 SDM, Pentax 18-250 SMC DA, Pentax-M 50mm f1.7, Sigma 70-300 F4-5.6 DG macro.
Flash: Pentax AF360.

salixarbour

Link Posted 24/02/2009 - 14:34
Thanks, John & Diatribe too.

Wouldn't it be nice if money just grew on trees?!

Alan.
Camera: K20D.
Lenses: Pentax DA* 55mm f1.4 SDM, Pentax DA* 16-50 SDM, Pentax 18-250 SMC DA, Pentax-M 50mm f1.7, Sigma 70-300 F4-5.6 DG macro.
Flash: Pentax AF360.

Diatribe

Link Posted 24/02/2009 - 14:54
I believe a 16-45 will be up for grabs at a reasonable price shortly in cassifieds - very tempting for me, but I have given my heart to a 14mm....
K20D and a substantial user manual to wade through

Anvh

Link Posted 24/02/2009 - 15:13
there is also the DA 17-70 the little bit of extra reach is handy with portraits.
The lens is more expensive then the 16-45 and it has the same sharpeness but the 17-70 and the 16-50 don't have so much Chromatic Aberrations.
Some users say it also have a better bokeh but I don't have those lenses so cant compare them really.
The 16-45 is still a superb good lens for that money though
Stefan


K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ

Gwyn

Link Posted 24/02/2009 - 15:19
I too would say consider the Pentax 17-70, partially weather sealed, SDM (only!) and a superb lens. I have no experience of the other two but I am really happy with my 17-70.

Greytop

Link Posted 24/02/2009 - 15:36
One other area to consider might be build quality. Although I haven't actually used a 16-45 I have handled one and I would say the robustness of the 16-50 is definitely superior.
I guess you would/should expect it to be given the weather/dust sealing and the price difference. Plus with the more substantial build comes a weight penalty of course.
Regards Huw

flickr

MattMatic

Link Posted 24/02/2009 - 15:37
Absolutely love the SMC-DA 17-70
Almost 100% on the K20D!
But the 16-45 is lighter and cheaper...
Matt
http://www.mattmatic.co.uk
(For gallery, tips and links)

iceblinker

Link Posted 24/02/2009 - 15:39
salixarbour wrote:
As for the macro specification of the 16-45, which you both probably quite rightly say it doesn't have, would you believe that I got my information from the official Pentax website. Here I downloaded and printed a pdf of the 16-45's specifications! Presumably, it's their mistake? Ooops.

The term "macro" isn't strictly defined, so perhaps Pentax is entitled to use it for the 16-45 after all. It is capable of 0.26x magification and a 28cm minimum focusing distance. (That's 28cm from the subject to the sensor).

Pentax 16-50: 0.21x, 30cm.

Tamron 17-50: 1:4.5, 27cm.

Basically, all these lenses can focus very closely if that's what you're interested in - significantly closer than the FA 50mm f1.4, by the way.
~Pete

salixarbour

Link Posted 24/02/2009 - 16:02
Thank you all, again.

Wonderful advice, which reinforces my own findings, and leaves me to make that big decision some time in the near future. Do I go for the
16-45, the 17-70, or the 16-50?

I undoubtedly have more homework ahead of me yet!

Is there a suspicion that lens manufacturers set out to create these dilemmas in order to extract more money from us, or am I just being overly cynical?!

Many thanks to all.

Alan.
Camera: K20D.
Lenses: Pentax DA* 55mm f1.4 SDM, Pentax DA* 16-50 SDM, Pentax 18-250 SMC DA, Pentax-M 50mm f1.7, Sigma 70-300 F4-5.6 DG macro.
Flash: Pentax AF360.
Add a Comment
You must be registered or logged-in to comment.