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06-21-2015, 11:10 PM   #1
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sigma 18-200?

seems that the consensus is that the pentax 18-135 is the way to go.

just curious, does anyone use the sigma 18-200 as their everyday lens?

is the pentax 18-135 that much better?

are they almost the same size and weight?

thanks

06-21-2015, 11:23 PM   #2
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QuoteOriginally posted by lgbalfa Quote
seems that the consensus is that the pentax 18-135 is the way to go.

just curious, does anyone use the sigma 18-200 as their everyday lens?

is the pentax 18-135 that much better?

are they almost the same size and weight?

thanks
Yes, I use the Sigma 18-200, it's been my everyday lens for some time on a K-30, and have no problems with it. I now have a K-3ii which will have a Sigma 18-300 as the everyday lens.
For my use the 18-135 would not have enough reach. I can't comment on other aspects of that lens.

Cheers,
Terry
06-21-2015, 11:25 PM   #3
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QuoteOriginally posted by tduell Quote
Yes, I use the Sigma 18-200, it's been my everyday lens for some time on a K-30, and have no problems with it. I now have a K-3ii which will have a Sigma 18-300 as the everyday lens.
For my use the 18-135 would not have enough reach. I can't comment on other aspects of that lens.

Cheers,
Terry
is the sigma 18-200 and pentax 18-135 about the same size and weight?

---------- Post added 06-22-15 at 02:27 AM ----------

QuoteOriginally posted by tduell Quote
Yes, I use the Sigma 18-200, it's been my everyday lens for some time on a K-30, and have no problems with it. I now have a K-3ii which will have a Sigma 18-300 as the everyday lens.
For my use the 18-135 would not have enough reach. I can't comment on other aspects of that lens.

Cheers,
Terry
is this the one that you have?

Sigma 18-200mm F3.5-6.3 DC Lens for Pentax AF

i found it on ebay refurbished for only $150.
06-21-2015, 11:28 PM   #4
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QuoteOriginally posted by lgbalfa Quote
is the sigma 18-200 and pentax 18-135 about the same size and weight?

---------- Post added 06-22-15 at 02:27 AM ----------



is this the one that you have?

Sigma 18-200mm F3.5-6.3 DC Lens for Pentax AF

i found it on ebay refurbished for only $150.
As I said, I can't comment on that...I don't have a Pentax 18-135 and not seen one. Have a look at the specs of each, they will give you the weight and filter size, and might give basic dimensions.

Cheers,
Terry

---------- Post added 06-21-15 at 11:32 PM ----------

Whoops, our posts may have crossed...it looks like I ended up answering one that hadn't appeared here when I selected 'reply'.
The lens I have is denoted as the Sigma 18-200 F3.5-6.3 II DC OS HSM on the documentation.

Cheers,
Terry

06-21-2015, 11:38 PM   #5
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We're currently in the process of putting together an in-depth review for the latest "Contemporary" version of the 18-200mm, which seems to be quite good.

Here are some user reviews & specs of the outgoing version:
Sigma 18-200mm F3.5-6.3 II DC OS HSM Lens Reviews - Sigma Lenses - Pentax Lens Review Database

And the Pentax lens:
SMC Pentax-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR Reviews - DA Zoom Lenses - Pentax Lens Reviews & Lens Database

And our in-depth review of the Pentax:
Pentax-DA 18-135mm F3.5-5.6 Review - Introduction | PentaxForums.com Reviews

Remember, the longer the zoom range, the more compromises are generally made.

Adam
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06-21-2015, 11:53 PM   #6
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QuoteOriginally posted by Adam Quote
We're currently in the process of putting together an in-depth review for the latest "Contemporary" version of the 18-200mm, which seems to be quite good.

Here are some user reviews & specs of the outgoing version:
Sigma 18-200mm F3.5-6.3 II DC OS HSM Lens Reviews - Sigma Lenses - Pentax Lens Review Database

And the Pentax lens:
SMC Pentax-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR Reviews - DA Zoom Lenses - Pentax Lens Reviews & Lens Database

And our in-depth review of the Pentax:
Pentax-DA 18-135mm F3.5-5.6 Review - Introduction | PentaxForums.com Reviews

Remember, the longer the zoom range, the more compromises are generally made.
adam,

have you personally used the Sigma 18-200mm F3.5-6.3 DC?

i know that you are a strong advocate for the pentax 18-135 but i can get this sigma refurbished on ebay for 1/2 the price.
06-22-2015, 12:09 AM   #7
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be careful with choosing the right ( latest ) version, the old ones are rather poor performers.
the one you want to buy is the Contemporary model:
Sigma 18-200mm F3.5-6.3 DC Macro OS HSM (Contemporary) Lens Reviews - Sigma Lenses - Pentax Lens Review Database
the Sigma Contemporary 18-300 DC HSM Macro is also good performer but not available in Pentax mount as yet, but it is definitely coming.....
06-22-2015, 12:19 AM   #8
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QuoteOriginally posted by i_trax Quote
be careful with choosing the right ( latest ) version, the old ones are rather poor performers.
the one you want to buy is the Contemporary model:
Sigma 18-200mm F3.5-6.3 DC Macro OS HSM (Contemporary) Lens Reviews - Sigma Lenses - Pentax Lens Review Database
the Sigma Contemporary 18-300 DC HSM Macro is also good performer but not available in Pentax mount as yet, but it is definitely coming.....
would you say that the current 18-55 WR lens is better than the older Sigma 18-200mm F3.5-6.3 DC?

06-22-2015, 12:21 AM   #9
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I had a Sigma 18-200 with a Pentax K-x a few years ago. It was a useful carry everywhere kind of lens, but I was never really totally satisfied with the image quality from it. Although that could equally well be to do with my lack of skill More recently I've had an 18-135 paired with a K-5iis and a K-3. Different camera bodies, I know - but I think the 18-135 is definitely superior to the Sigma 18-200. Also WR which is handy at times.

I don't know what more recent Sigma 18-200 lenses are like.

I'll admit to having exchanged the 18-135 for a 16-85 recently because I find the wider angle at the short end more useful. I feel the 16-85 is another step up in image quality again, but I do wonder if there'll be times when I miss the gap between 85 & 135. I guess I'll just have to crop a bit harder or carry the 60-250 with me more often.
06-22-2015, 12:53 AM   #10
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QuoteOriginally posted by lgbalfa Quote
would you say that the current 18-55 WR lens is better than the older Sigma 18-200mm F3.5-6.3 DC?
I would say so but not from my own experience, never had Pentax 18-55 WR or not WR, much later design/coating than old Sigma.
06-22-2015, 02:59 AM   #11
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The older Sigmas have pretty poor coatings and have a tendency to flare and can give pretty poor contrast in some situations. Newer ones seem to do better in these respects.
06-22-2015, 03:03 AM   #12
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I have the Sigma 18-200mm DC lense (the non-HSM version) - bought it refurbished from National Camera Exchange (eBay) for $149.99 and have had it on my K-50 since I received it... it is a good superzoom, very versatile and does take good pictures...

that being said - it renders colors a little flat, which I can correct in post... I would also consider a used Pentax SMC P DA 18-250 mm F/3.5-6.3 ED AL (IF) for a bit more money.....
06-23-2015, 12:04 AM   #13
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When I bought my first DSLR I chose Sigma 18 ~ 200 (old version) as the lens.

It is my worst investment on lenses.
The first problem is its low IQ though it seems not a problem to everyday use.
The second problem is that I felt it cannot reach 200mm focal length.
The last problem is only in Pentax system. You will not get OS and Pentax's image stabilization is not good enough for these tele photograph lenses.

Actually I suggest DA 16~45 F/4.
07-31-2015, 09:36 PM   #14
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QuoteOriginally posted by lgbalfa Quote
seems that the consensus is that the pentax 18-135 is the way to go.

just curious, does anyone use the sigma 18-200 as their everyday lens?

is the pentax 18-135 that much better?

are they almost the same size and weight?

thanks
The Sigma is a great every day or "snap shot" lens. I used it quite a bit when I first got it. My biggest problem with this lens is it really struggles with compression and DOF. The Pentax DA 50-200 WR beats the Sigma quit handily in both these areas. If sharpness is what you want then the Sigma is great.

Last edited by macman24054; 07-31-2015 at 09:37 PM. Reason: spelling
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