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12-06-2008, 07:36 PM   #1
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Seek your expert advice

Hi all ,

I am new to your forum and also new to dSLRs.

I have some experience of using film SLR. I have been using my Yashica FX-3 about 10 years now. Finally I thought it’s time to go for a dSLR. After doing some research on internet, I selected Pentax mainly due to its great value for money.

K20 is expensive for me. So eventually I decided to go for K200 over K-m because of weather sealing, DOF preview, 11 focus points and so forth.

Here in Melbourne, Digital Camera Warehouse offers the best prices.

1. K200 body only for AU$ 565 (US$ 360)
2. With Pentax 18 – 55mm f3.5 – 5.6 for AU$ 685 (US$ 435)
3. With Sigma 24 – 60mm f2.8 for AU$ 805 (US$ 515)

According to my little SLR knowledge, I see 3rd option is better because of the creative freedom offered by the constant large aperture of the lens. However, I found that this Sigma lens is a full frame lens and not a dedicated crop sensor lens. Also the sales person at DCW told me that this lens has few complains of front focusing for its Nikon and Canon mounts but he doesn’t know anything about Pentax mount.

So I thought to seek advice from Pentax experts.

a. As experienced photographers, what do you think about my selection of 3rd option?

b. Is a full frame lens good for a crop senor dSLR?

c. Have you used this Sigma lens and experienced any bad thing?

I really appreciate all your comments and sorry for bothering you with this lengthy post.

Thanks



12-06-2008, 07:58 PM   #2
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If you go for the Sigma you will only have a 36mm wide angle once the 1.5 crop
factor comes into it. I purchased a Sigma 17-70mm f2.8-4.5 macro lens with
my k20d and find it to be a very nice lens. It may not be constant 2.8 but it is
a lot better than the standard lens and has a 25.5 wide angle.
12-07-2008, 01:19 AM   #3
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You could also consider the Tamron 28-75 mm f2.8. It's a great lens and it costs about 350 euros here in Europe - that's about AUD100 less than the Sigma. It's very sharp and very well built.

(The full name is Tamron SP AF Aspherical XR DI LD [IF] 28-75mm 1:2.8 Macro).
12-07-2008, 02:57 AM   #4
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I would suggest the option 2, as the new Pentax 18-55 Mkll is a very good lens for the money. It will give you a 27-82.5 mm lens to play with. Once you have used it for a while, you will have a better idea of which lenses you may want for your future needs.

Ben

12-07-2008, 06:42 AM   #5
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QuoteOriginally posted by KTW Quote
Hi all ,

I am new to your forum and also new to dSLRs.
Here in Melbourne, Digital Camera Warehouse offers the best prices.

1. K200 body only for AU$ 565 (US$ 360)
2. With Pentax 18 – 55mm f3.5 – 5.6 for AU$ 685 (US$ 435)
3. With Sigma 24 – 60mm f2.8 for AU$ 805 (US$ 515)

Thanks

I'm not an expert.
I think I have seen some good reviews on the Sigma. But you can get some pretty nice photos from the Pentax stopped down.

The prices you list are crazy though. I know its much pricier in other countries but $435 US for the kit lens. My god!!! I thiink I paid $70 for a new one when I first started out a year ago. I think the Sigma can be had for just a little over $200 US.
Can you shop internet? There are some very reputable internet stores if you choose to go that way.

Last edited by OrenMc; 12-07-2008 at 06:52 AM.
12-07-2008, 04:35 PM   #6
KTW
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QuoteOriginally posted by ozzi-paul Quote
If you go for the Sigma you will only have a 36mm wide angle once the 1.5 crop
factor comes into it. I purchased a Sigma 17-70mm f2.8-4.5 macro lens with
my k20d and find it to be a very nice lens. It may not be constant 2.8 but it is
a lot better than the standard lens and has a 25.5 wide angle.
Thanks for your comment. I see your point. DCW quotes K200 with Sigma 17-70 for AU$ 920. But my worry is its varying aperture and f4.5 at tele end. I am used to get nice blur background shots with my film SLR.
12-07-2008, 04:45 PM   #7
KTW
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QuoteOriginally posted by luxart Quote
You could also consider the Tamron 28-75 mm f2.8. It's a great lens and it costs about 350 euros here in Europe - that's about AUD100 less than the Sigma. It's very sharp and very well built.

(The full name is Tamron SP AF Aspherical XR DI LD [IF] 28-75mm 1:2.8 Macro).
Thanks luxart. I read a review of Tamron lens. Yes, it would be a good choice. But here, they don't offer it as a bundle with k200. So the body and lens should be purchased separately. Then they cost lot.

QuoteOriginally posted by benjikan Quote
I would suggest the option 2, as the new Pentax 18-55 Mkll is a very good lens for the money. It will give you a 27-82.5 mm lens to play with. Once you have used it for a while, you will have a better idea of which lenses you may want for your future needs.

Ben
Thanks Ben. Yes there are good reviews for Pentax 18-55. But my worry is its varying aperture and f5.6 at tele end. I am used to get nice blur background shots with my film SLR. That's why I thought to go for a wide aperture zoom instead of kit lens.
12-07-2008, 05:04 PM   #8
KTW
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QuoteOriginally posted by OrenMc Quote
I'm not an expert.
I think I have seen some good reviews on the Sigma. But you can get some pretty nice photos from the Pentax stopped down.

The prices you list are crazy though. I know its much pricier in other countries but $435 US for the kit lens. My god!!! I thiink I paid $70 for a new one when I first started out a year ago. I think the Sigma can be had for just a little over $200 US.
Can you shop internet? There are some very reputable internet stores if you choose to go that way.
Thanks for your comment. AU$ 685 (US$ 435) is not the lens price. It's for both k200 body and Pentax 18-55 lens. AU$ 805 (US$ 515) is again for both body and Sigma 24-60 lens. If purchased separately, they sell Sigma 24-60 for AU$ 600 (US$ 385). When purchased with K200, lens costs just AU$ 240 (US$ 150). This is their price list,
Pentax K200D DSLR Camera

Sigma 24-60 is the only lens with constant wide aperture they sell as a bundle with K200.

12-07-2008, 07:01 PM   #9
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Full frame lens isn't a problem on this, but it just may not be wide enough. i borrowed the sigma's bigger brother (24-70 F2.8), and found it not wide enough. I also found that 70 was just about right for that kinda tele. 60 may not be.

I assume buying body and lens seperately is out of your budget?
Pentax K200D body: 565
Tamron 17-50 f2.8: 539

1104 total.

you keep saying that you want the same kind of blurred background that you had with your film camera. do you know what lens you did have then? good quality F2.8 constant zooms are going to cost a lot more than something with a variable aperture.

the 17-70 f2.8-4.5 only goes to F4.5 near the end of it's zoom range. it's only something like a third of a stop slower on the tall end than Pentax's own 17-70 F4. you'll get a shallower DOF with the sigma 17-70 than the DA kit lens. Heartily recommended (especailly on the K200D, by a Nikon shooter no less...) on another Aussie forum.

If they sell it as kit, it generally means it's not a brilliant lens. look at the cheapest kit that DCW sell. lens is so old, it's not even on sigma's discontinued list... the DA18-55 is a good lens. probably not for portrait, but the best ones that can be had for cheap are primes, not zooms.
12-07-2008, 07:39 PM   #10
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My choice # 1 would be to buy bare body and then buy Pentax 16-45/4 lens separately. This is my favorite "kit" lens. Razor sharp all over the range, and a very usefull AF/MF focus shift.
You can even buy it used, usually there's nothing wrong with them, they didn't suffer from common back/front focusing issues.

Choice # 2 would be K200D + Sigma EX 24-60/2.8
I had this lens too and my copy was a very sharp lens @ 2.8 in all range but 24mm. @ 24mm it was acceptable, but ideally at 24mm I stopped it t F4 .

There were some complains about Sigmas , but if you will be buying in store with option of easy replacement or return, I would not hesitate to try and buy this Sigma.

I had 18-55 lens, it was "ok", but compared to both Sigma EX 24-60/2.8 and Pentax 16-45/4 it was nothing to write home about.

Last edited by awo425; 12-07-2008 at 07:59 PM.
12-07-2008, 09:59 PM   #11
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QuoteOriginally posted by KTW Quote
Thanks for your comment. I see your point. DCW quotes K200 with Sigma 17-70 for AU$ 920. But my worry is its varying aperture and f4.5 at tele end. I am used to get nice blur background shots with my film SLR.
KTW, you can still get a good amount of blur in the b/ground with the
Sigma 17-70mm lens. I have done some practice shots to test it out and have got
some with a very shallow DoF on flowers.
I'm not sure how much you want to spend but this lens is a pretty good
compromise between cost and quality. (Low cost, high quality)
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