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06-13-2009, 10:22 PM   #1
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Need advise on purchasing a pentax lens

Need help in deciding which pentax lens to buy. I am been looking at a 17-70F4 and a 12-24 F/4.0. I am a beginner and I will be going to Alaska. My pentax is a
K100D Super. Also, I will need to purchase a filter and I need to know what would be best.


Last edited by Sandy Kay; 06-13-2009 at 10:30 PM. Reason: need to change title
06-13-2009, 10:44 PM   #2
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Hello Sandy, welcome to the forum.
If you are thinking of buying these lenses for your Alaska trip, I think you will be disappointed if you don't also have a longer lens.
I'm assuming that you have budget restrictions so the 17-70 would be a good choice because of it's range but I would strongly suggest you consider getting something like the 55-300 to accompany it.
A cheaper alternative would be to get something like the 18-250.
06-14-2009, 12:23 AM   #3
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I'm trying to choose between the 17-70 & the 18-250 myself
I can't make up my mind!
06-14-2009, 03:13 AM   #4
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QuoteOriginally posted by crispy0009 Quote
I'm trying to choose between the 17-70 & the 18-250 myself
I can't make up my mind!
For an Alaska trip, I'd take the 18-250mm.
You will appreciate the long end on wildlife encounters.

- Bert

06-14-2009, 05:01 AM   #5
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Others already stated the lens options to look at. (Of course, you could also look at a Tamron 70-300mm - a little longer at the short than others listed, but I don't think you want to get too close to bears! or moose! at this time of year).

If you just want a filter for lens protection, then either a skylight or UV would do this. UV would do better though, since it will help cut glare.
06-14-2009, 05:23 AM   #6
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Welcome Sandy,
Do you already have a lens, like the kit lens?
If so, are you happy with its results and willing to keep it for the trip?
Then if you're on a smallish budget the 55-300 is a good suggestion, unless you really want a wider lens - the 12-24 is a great performer (takes those big 77mm filters) but is considerably pricier than the 17-70 or 55-300.

The 18-250 is a good choice too - not having to change lenses out in the field may be a bonus.
06-14-2009, 08:37 AM   #7
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QuoteOriginally posted by Sandy Kay Quote
Need help in deciding which pentax lens to buy. I am been looking at a 17-70F4 and a 12-24 F/4.0.
Both are good lenses. Hopefully you mean, you're looking at getting both of them, not one or the other - they are *very* different. If you're getinng just one, between the two the 17-70 would be way more versatile - you have a good sense of what those numbers *mean* in terms of what kind of images you get?

For an Alaska trip - or anything else outdoors - no way would I be happy with only 70mm on the long end. I'd be looking at the 17-70 plus something longer like the 55-300 - or just the 18-250 in place of those two.

QuoteQuote:
Also, I will need to purchase a filter and I need to know what would be best.
I guess the starting point would be to ask why you think you "need" a filter. If you have a specific reaosn for a filte,r then you get the kind of filter than provides that benefit. Unless you have a specific reason you know you need a filter, though, you don't need one (and most people don't).

Last edited by Marc Sabatella; 06-14-2009 at 02:35 PM.
06-14-2009, 09:06 AM   #8
emr
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According to the OP's profile, his/her equipment includes

QuoteQuote:
The lens that came with the camera is a 18-55 and a zoom lens 75-300.
So I assume he/she is looking for a lens in addition to those. Am I right?

06-22-2009, 08:42 PM   #9
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I am going with my two lenses - 18-55 and a 75-300. Instead of buying a new lens, I purchased a nice tripod. I need to learm more on my camera and I am sure after I do, I will want to purchase an upgrade in camera.

Thanks for you help.
06-25-2009, 11:05 AM   #10
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If you are planning to shoot landscapes and close up photography and want an all in one solution, the 18-250 would work well. However, be warned...When shooting over 120mm be sure to stop down to at least f8.0 or f11.0 to get good results. These lenses usually suffer in the long end. The ideal solution would be a 17-70 and a 70-200 f2.8 lens.

Ben

PS...I absolutely love the Pentax 12-24. One of my favorites.
06-25-2009, 11:06 AM   #11
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QuoteOriginally posted by Sandy Kay Quote
I am going with my two lenses - 18-55 and a 75-300. Instead of buying a new lens, I purchased a nice tripod. I need to learn more on my camera and I am sure after I do, I will want to purchase an upgrade in camera.

Thanks for you help.
Good choice. Now go out and get the K20D instead. The price right now is incredible.
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