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09-22-2010, 05:14 AM   #16
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QuoteOriginally posted by Ira Quote
You're also gonna need a step down ring from 58 to 52 to be able to use a lens hood on the 18-55 with a 58 CP on there--a hood that's NOT included in the kit, and that you have to buy separately.
Only if you buy screw-in type lens hoods. The kit lenses use bayonet lens hoods. PH-RBA for the 18-55 and PH-RBG for the 55-300. You can buy chinese knock-offs for less than $15 on eBay.

09-23-2010, 03:21 AM   #17
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now I'm getting confused.......
09-23-2010, 03:36 AM   #18
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QuoteOriginally posted by twix23919 Quote
now I'm getting confused.......
My bad--I think this is the deal:

The end of your lens has threads to screw your filter into, and the filter has threads to screw your lens hood onto. However, the tulip type hoods twist-lock on, so I guess you put those on first and screw your filter onto the HOOD.

I think. All I use is the old stuff.
09-23-2010, 03:50 AM   #19
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hi...yes, I was old school also, and all of that equipment is long gone....mmmm....I miss it! but I do like the whole digital thing...delete and retake, how easy is that! anyway, I'm glad I haven't purchased just yet....it's hard making the right decisions online and not being able to actually see what I'm dealing with....so what's the best way to go then? I haven't even considered the hoods....

09-23-2010, 04:11 AM   #20
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QuoteOriginally posted by Ira Quote
My bad--I think this is the deal:

The end of your lens has threads to screw your filter into, and the filter has threads to screw your lens hood onto.
Agreed.

QuoteOriginally posted by Ira Quote
However, the tulip type hoods twist-lock on, so I guess you put those on first and screw your filter onto the HOOD.
No, tulip hoods have no threads. You screw the filter to your lens and the tulip hood fastens to the lens barrel. The filter and hood do not interact. It's possible that the tulip hood will clear the 52 to 58mm adapter. Sorry, I don't have one to try.
09-23-2010, 04:41 PM   #21
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QuoteOriginally posted by twix23919 Quote
My question is....are these good lenses? I was thinking of buying the:
Tamron AF 18-200mm f/3.5-6.3 XR Di II LD Aspherical (IF) Macro Zoom Lens

because I was thinking that the lenses being "kit" lenses were of bad quality.
You have to realize that everything is relative. Compared to lenses that cost many times more, sure, the kit lenses aren't great. but compared to lenses tin the same general price range, they are excellent. The 18-200, ont he other other hand, is a "superzoom" - a lens with a very large (over 1X zoom ranges). Whatever one might generally say about the quality of kit lenses, the overall quality of superzooms is worse. The way to improve on the quality of a lens is *not* to get one with greater zoom range. Instead, expect to spend many times more on a lens with about the *same* zoom range, or perhaps only twice as as much on a lens with *no* zoom range (ie, a prime).

There is actually a very simple formula to give you a basic idea about the image quality of a lens. It is:

IQ = price / zoom range

So an 18-200 (~11X zoom range)) that costs $300 works out to 300/11, or a bit under 30. The 18-55 kit lens (~3X zoom range) at about $100 works out to be a bit over 30. This is obvious nothing scientific, but it puts you in the ballpark of the right expectations.
09-23-2010, 04:54 PM   #22
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QuoteOriginally posted by twix23919 Quote
sounds good....thanks again, y'all are so helpful! have a super evening!
I don't know if it's relevant to you but B&H has the same double kit for $629. that's an amazingly really good deal I'd say. I mean really, just wow.
I'll jump on it if I could,

Pentax K-x Digital SLR with 18-55mm and 55-300mm Zoom 15801 -
09-23-2010, 06:39 PM   #23
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QuoteOriginally posted by Marc Sabatella Quote
There is actually a very simple formula to give you a basic idea about the image quality of a lens. It is:

IQ = price / zoom range
You forgot the smilie Marc. The 18-250 shows your math doesn't work. It's as good as the 18-55 in the same range according to my test. I've never used an 18-200 but they are universally rated below the Tamron/Pentax 18-250, despite the heavier zoom factor. I have high hopes that the new 18-135 WR (7.5X zoom) will put the nail in this coffin.

09-23-2010, 07:18 PM   #24
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QuoteOriginally posted by Pablom Quote
I don't know if it's relevant to you but B&H has the same double kit for $629. that's an amazingly really good deal I'd say. I mean really, just wow.
I'll jump on it if I could,

Pentax K-x Digital SLR with 18-55mm and 55-300mm Zoom 15801 -
That was the deal several weeks ago. Beats the $720 I paid through Amazon mid-July. I added a Pentax DA 18-250mm a few weeks ago. If I'd known about that to begin with I may have skipped the 55-300mm zoom, but I'm sure I will have uses for it. It's hard to argue against the contention above in this thread that that 2 lens kit is the best deal in DSLR's currently. When the K-r comes down in price (yes, it's not even available now) I imagine that will be the best deal.
09-24-2010, 06:15 AM   #25
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QuoteOriginally posted by Muse Quote
I added a Pentax DA 18-250mm a few weeks ago. If I'd known about that to begin with I may have skipped the 55-300mm zoom, but I'm sure I will have uses for it.
IME the 18-55 and 18-250 are comparable in their common range. Each has advantages and disadavantages, but roughly equal. OTOH, there is little to compare between the 18-250 and 55-300 for pure telephoto use. The 55-300 is better in every way; higher resolution, better colours, faster apertures, less fringing, longer reach.

Regarding range, try a photo at 10m (30 ft) with both. The 55-300 will give you a true 300mm fov. The 18-250 will give you a 200mm fov.

Last edited by audiobomber; 09-24-2010 at 06:23 AM.
09-24-2010, 10:18 AM   #26
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QuoteOriginally posted by audiobomber Quote
You forgot the smilie Marc. The 18-250 shows your math doesn't work. It's as good as the 18-55 in the same range according to my test.
Well, I did say it wasn't scientific, and pretty obviously not perfect. Still, the 18-250's typical run $400-$500 (for the purpose of my little forumla, you use the usual list price, not the amazing deal one might have found one day in a closeout sale). If I call that 14X for $450, my formula yields a little over 30 - just like the kit lens. So actually, the formula works pretty well in that case, too.
09-24-2010, 10:24 AM   #27
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QuoteOriginally posted by Marc Sabatella Quote
Well, I did say it wasn't scientific, and pretty obviously not perfect. Still, the 18-250's typical run $400-$500 (for the purpose of my little forumla, you use the usual list price, not the amazing deal one might have found one day in a closeout sale). If I call that 14X for $450, my formula yields a little over 30 - just like the kit lens. So actually, the formula works pretty well in that case, too.
I guess I should have done the math.
09-25-2010, 11:15 AM   #28
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I just bought the K-x and 18-55 + 55-300mm lens combination about 2 weeks ago. All the reviews I read indicated that the 300mm lens was significantly better than the 200mm lens. I'm glad I got it also because I've been shooting my kids at sports and the 300mm lets me isolate 2 players at the other end of the soccer field rather well. At 200mm it is a much wider view. I could not be happier with the purchase. I'm still on my original AA Lithium batteries and I've shot 3 soccer games, 2 Softball games, and spent 6 days at Disney. Just outstanding performance overall.

I suggest that you get hoods for each lens. They are bayonet type hoods for these lenses (they are pushed on and rotated about 1in to secure them on the end of the lens) to improve high sunlight performance. I got mine from eBay (from Hong Kong) for ~$12-13 each shipped and they are working perfectly. They go on as they should, store on the lens when reversed, and do not interfere with filters, lens caps, or focusing. Still wish Pentax had included them with the lenses but they were pretty easy to source.

I got my lens hoods (58 & 52mm) from:
FotoAccessories items - Get great deals on SANDISK????u?, SD?MINISD items on eBay Stores!

You might also want to pick up a remote for the K-x at around $5.
items - Get great deals on TELEPHOTO LENSES, LENS SETS items on eBay Stores!

Last edited by Docrwm; 09-25-2010 at 11:23 AM.
09-26-2010, 03:07 AM   #29
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good morning....I have been enjoying all the comments! it's been great info! I ordered my k-x camera kit yesterday from bh. my question now is on the filter adapter, which way would you go? would you do a step up adapter or a step down? and is there any reason why one way would be better than the other? thanks again!
09-26-2010, 03:23 AM   #30
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I have another question...which lens hood do you prefer? the flower design or rubber?
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