Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-28-2014, 04:07 PM   #1
New Member




Join Date: Apr 2012
Posts: 23
My lens conundrum

I usually keep about three lens with me, which consist of 2 zooms and a prime

1.) Tamron 10-24
2.) Tamron 28-75 2.8
3.) Sigma 50 1.4 HSM

With the release of several new lenses from Sigma, their contemporary and art lines, I have been thinking about selling the lenses above to aquire these 2 lens instead

1.) Sigma 17-70 C HSM
2.) Sigma 30 1.4 A HSM

The UWA doesn't really get much use, and I would rather stitch higher quality images rather than get the distorted edges. The Tamron 28-75 is great, but I need a little more on the short end, though I will miss a constant 2.8. The Sigma 50 is great as well, but much like the Tamron, I would rather get a 30 1.4 because of its viewing angle. I normally shoot indoors, candid, and "street", so I was hoping that the people of Pentaxius could give me some suggestions or talk me out of LBA or even provide me their experiences with the 2 newer sigma. Am I over thinking things? Thanks


Last edited by digitallymike; 02-28-2014 at 04:27 PM.
02-28-2014, 04:28 PM   #2
Veteran Member




Join Date: Jun 2010
Location: Manteca, CA
Photos: Gallery | Albums
Posts: 1,653
It would be hard to talk you into selling some of those lenses BUT if I were in your shoes and had to make a choice Here is what I would do.


Sell the Tamron 28-75 in lieu of the 17-70(I dont know about the Sigma but I know the Pentax 17-70 SDM is great)

How much do you use the 10-24? If it isnt used much or if you were happy @ 17mm then sell the 10-24 and snag the 30.

I have heard, and seen sample shots with the 30 1.4 and it is on my short list, it is supposed to be amazing.
02-28-2014, 04:38 PM   #3
Emperor and Senpai
VoiceOfReason's Avatar

Join Date: Jun 2010
Location: Nashville, IN
Posts: 5,368
Sell the 10-24, sell the 50, keep the 28-75, buy the Sigma 18-35 f/1.8 with the proceeds of the other lenses!
02-28-2014, 06:59 PM   #4
Site Supporter
rbefly's Avatar

Join Date: Oct 2009
Location: Denver, Colorado
Photos: Albums
Posts: 2,030
Good Plan!

Hello Mike, welcome to the Forum!
I think you have a good plan. Judging from what I've read and seen, the newest Sigmas are high-quality lenses, rivaling the best available.
And your reasoning for the Sigma's (and Pentax) focal range seems sound; I shoot street and candids too. Hardly ever need F/L in the 'teens' more like 24-35mm, occasionally out to 50mm+. A great, fast prime lens around 30mm sounds perfect.
Depending on which body you're shooting with, the loss of one stop at the long end of the Sigma shouldn't be a deal-breaker. If that's the focal range you want in your 'main' lens- one lens, not two- I'd say go for it.
JMO,
Ron

02-28-2014, 07:20 PM   #5
New Member




Join Date: Apr 2012
Posts: 23
Original Poster
Seems that way. Looking at the 17-70 C threads here and its rating on DXO mark, I don't see how its a bad choice. Probably will sell my 10-24 and 28-75 to fund that, and then my sigma 50 to fund the 30. As tempting as the 18-35 is...its a honker of a lens.
02-28-2014, 08:27 PM   #6
New Member




Join Date: Apr 2012
Posts: 23
Original Poster
QuoteOriginally posted by rbefly Quote
Hello Mike, welcome to the Forum!
I think you have a good plan. Judging from what I've read and seen, the newest Sigmas are high-quality lenses, rivaling the best available.
And your reasoning for the Sigma's (and Pentax) focal range seems sound; I shoot street and candids too. Hardly ever need F/L in the 'teens' more like 24-35mm, occasionally out to 50mm+. A great, fast prime lens around 30mm sounds perfect.
Depending on which body you're shooting with, the loss of one stop at the long end of the Sigma shouldn't be a deal-breaker. If that's the focal range you want in your 'main' lens- one lens, not two- I'd say go for it.
JMO,
Ron
I'm currently running with a k-30. I lust for the k-3, but I don't really need it tbh.
02-28-2014, 10:57 PM   #7
Pentaxian




Join Date: Sep 2009
Location: Southern California
Photos: Gallery | Albums
Posts: 3,181
QuoteOriginally posted by digitallymike Quote
I'm currently running with a k-30. I lust for the k-3, but I don't really need it tbh.
No, you probably don't.


Don't worry about selling the Tamron 10-24 - it's not really that great a lens. UWA zooms like that are hard to make. That's why people are so excited about the Sigma 18-35/1.8. While it's not quite UWA, the aperture speed and IQ are high. And that's why they're willing to carry a bigger lens as well. My guess is it'll outperform the Sigma 30/1.4 A, given the price and history of the previous generation of that lens (very substandard performance outside the center of the frame).


The Sigma 35/1.4 A is fairly good - expect less of the lower-priced 30/1.4 A.


If you're willing to change lenses at the wider lens, it might be worth supplementing the Tamron 28-75/2.8 with a better wide option. The ~12-28 Pentax has on the roadmap will probably be good, but somewhat pricey like the Sigma 18-35/1.8. But it's impossible to get better quality at this end without paying some $.

I'd just stick with the DA35/2.4 if you want a 30ish prime - you'll get better performance for your $ - and probably flat out better performance.
03-11-2014, 07:03 PM   #8
New Member




Join Date: Apr 2012
Posts: 23
Original Poster
on the other hand...just sold the tamron 10-24...thinking about getting a second camera..e.g. Panasonic LX7 to supplement the k30 with its tamron 28-75 and the sigma 50. Any thoughts or suggestions?

03-29-2014, 12:15 PM   #9
New Member




Join Date: Apr 2012
Posts: 23
Original Poster
Well the 17-70 has arrived and I am quite surprised by its performance. Sharpness, at least on my copy, is comparable to the tamron 28-75, though the 17-70 seems to exhibit a slight better center sharpness. The HSM is nice and not having to click a lens lock switch is a bonus. Going to go ahead and sell the tamron 28-75, and run an exposure plot to see whether the 30mm or 50mm fov gets used more often. hopefully that will help with my future prime purchase.
03-29-2014, 07:32 PM   #10
Pentaxian




Join Date: Sep 2009
Location: Southern California
Photos: Gallery | Albums
Posts: 3,181
Going with a prime(s) wider than 17mm isn't a bad idea. I'm interested to see how good the Samyang 10/2.8 turns out to be.

I'm glad you like the Sigma 17-70. It's nice to have that range of focal lengths. I used to have the DA17-70.


I read about the new 30/1.4 earlier this month, and apparently it's better than the old version - but not enough to get me excited about it. I'd still save my money and get the DA35/2.4 - it performs well wide-open, since its original design was an f/2 lens. Now you can get good bokeh and sharpness at f/2.4.
03-31-2014, 09:21 PM   #11
New Member




Join Date: Apr 2012
Posts: 23
Original Poster
Actually with the funds with the 28-75 and the sigma 50...I may just have enough to purchase a 18-35, it's like 5 primes in one.
03-31-2014, 10:14 PM   #12
Pentaxian




Join Date: Sep 2009
Location: Southern California
Photos: Gallery | Albums
Posts: 3,181
QuoteOriginally posted by digitallymike Quote
Actually with the funds with the 28-75 and the sigma 50...I may just have enough to purchase a 18-35, it's like 5 primes in one.
I'm sure it won't be quite as good as 5 fast primes, but I also don't think anything else will come close to it for the next few years.
04-01-2014, 02:32 PM   #13
Pentaxian
ChristianRock's Avatar

Join Date: Jul 2013
Location: Woodstock, GA
Photos: Gallery | Albums
Posts: 4,379
The only problem is that nobody has any idea about when the 18-35 will come out in Pentax mount.

I wouldn't make plans based on it...
04-01-2014, 06:06 PM   #14
New Member




Join Date: Apr 2012
Posts: 23
Original Poster
QuoteOriginally posted by ChristianRock Quote
The only problem is that nobody has any idea about when the 18-35 will come out in Pentax mount.

I wouldn't make plans based on it...
Yeah, I am quite aware of that fact. Here's to hoping to a mid-April or May release. If not i can settle with a set of primes in its place.
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!
hsm, k-mount, lens, lenses, pentax lens, sigma, slr lens, tamron
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Licensing / Copyright conundrum NicoleC Photographic Industry and Professionals 4 02-02-2014 11:42 AM
Conundrum Spodeworld Troubleshooting and Beginner Help 5 12-17-2013 09:30 AM
Lens buying conundrum cpritchardv Pentax SLR Lens Discussion 6 06-05-2013 05:15 AM
shutter count conundrum cristigj Pentax K-01 5 04-25-2013 07:48 PM
close focus conundrum 97381 Troubleshooting and Beginner Help 23 03-27-2012 01:57 PM



All times are GMT -7. The time now is 02:55 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