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03-15-2013, 10:47 AM   #1
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K30 on its way - what about used lenses?

Hello all.

Finally ordered a K-30 today from a nice little independent store. They have given me lots of advice and chat as I have spent some weeks researching and planning my purchase.

Anyway, its on its way, with 18-55wr kit lense, and while I was in the store today I noticed they had a few second-hand lenses in stock.

So, there is a Pentax 28-80mm f3.5-5.6 SMC F4 for 49.99
Tamron 18-200mm for 149
Pentax 100mm f2.8 macro for 349.99

What do people think of those? What would they be used for (I am very new to this)

The macro is a bit pricey for me right now but I might get the others if they are useful bargains.

03-15-2013, 10:53 AM   #2

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Probably best if you start with the lens review database:

Pentax Lenses - Pentax Lens Reviews & Lens Database
03-15-2013, 11:08 AM   #3
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Yes, check the databases for more info ... also look at for third party lenses.

The Tamron would be a decent walk-around lens for a beginner ... I do not know if that price is good or not ... J

Last edited by Jean Poitiers; 03-15-2013 at 11:24 AM.
03-15-2013, 11:15 AM   #4
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The 100mm macros are all well-regarded. I have the FA version and find it extremely useful as I enjoy taking pictures of insects. It's also useful as a telephoto. 349 pound seems a bit costly, but I don't know the market there.
You may also look for either version of the 55-300mm longer zooms, which are very good.

03-15-2013, 11:17 AM   #5
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Lens database is indeed a good place to start.

Second you need to understand the different Pentax lens series and their capabilities. For example Pentax made a 100mm f/2,8 macro in the M, A, F, FA, and DFA series. Each of those has somewhat different capabilities so determining if that is a fair price is hard to do from the info given. Far too much for an 'M' maybe OK for an 'F' or 'FA'. Check here for a good chart: Pentax K-Mount Lenses Explained: The differences between various Pentax lens series

The 28-80 is the 'kit' lens from film days similar to your 18-55 but not as good, It has a bit more reach but IMHO not worth it over what you have.

Also read this before buying a used lens:

And don't hesitate to ask here but make sure you have all the information.
03-15-2013, 11:18 AM   #6
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Congratulations. The review database is a good start - so is figuring out what types of photographs you are most interested in to start. The 100 gives you more reach and is a solid Macro option as well. The 18-200 is a versatile lens but like many things that likes to be all things its not exactly great at any single thing.
03-15-2013, 12:09 PM   #7
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If you can choose from: Pentax DA 17-70/4 + Pentax DA 55-300/4-5, 8 or lower priced Pentax DA 35/2, 4 + Pentax DA 55-300/4-5, 8
03-15-2013, 12:13 PM   #8
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I am a big fan of the Tamron 18-200, it is a great walk around lens, but that price seems high. Looks like you can get the same lens new from Amazon UK for 150,

Tamron AF 18-200mm F/3.5-6.3 XR Di II LD Aspherical: Camera & Photo

03-15-2013, 04:22 PM   #9
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I'm going to recommend you stick with only the 18-55 for awhile. If you think you really need a telephoto, get either the DA50-200 or 55-300, but stick to only these beginning lenses. Find out what kind of photographer you want to be. When you find that you are consistently dissatisfied with something, buy a lens to solve that problem. Keep on that way until you've got a nice kit that fits you.

I think a good cadence is to get the 18-55 and 50-200 for a year, shoot a bunch. Try hard to use the zooms not just at each end of the range; work really hard at choosing views somewhere in the middle but whatever frames your shot the way you want it to look. Try out different zooms lengths for the same shot to get a feeling for focal length on your composition, and then after that, get your first prime. The way you pick it is by looking at all your pictures, and pick a focal length that you tend to use a lot.
03-17-2013, 09:04 AM   #10
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If you want a good cheap lens, go for a smc pentax-m 50mm f1.7. For me one of the best for the price
03-17-2013, 10:14 AM   #11
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Very cheap and quite good is the smc pentax-m 135mm f3.5 and it works very well for more or less 1:1 macro with a Raynox 150 clip-on adapter which you could also use on other lenses, particularly a 50-200 or similar zoom for a bit more flexibilty in magnification.
Manual lenses are fine for macro, it's usually preferred over AF anyway. Manual lenses are good for video as well.
03-17-2013, 10:16 AM   #12
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Our favourite used lens right now is probably the F 70-210. It's noisy, but useful. Autofocus, and shouldn't cost more than $100.

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