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Old Sep 29, 2010, 8:22 PM   #1
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Default I need to buy a telezoom , but which one ?

I've got to buy myself a telezoom to shoot my friends riding bikes on the circuit , i've been trying with my Pentax 50-135mm f/2.8 and croping when subject is too far , this isn't working like i want it too.

I'm not sure that a Pentax 200mm f/2.8 will quite cut it for long shoots so i'm leaning for a 300mm lens
here are my 3 choices :
Pentax 300mm f/4
Pentax 60-250mm f/4
Sigma 100-300mm f/4

Many will say that the 300mm from Pentax is the way to go but i'm not convinced , maybe a zoom is more practical then having to choose a sweet spot to capture the bikers just right.
The 60-250mm looks like perfect but it's very expensive , it's not too big and not too heavy , much less so then the Sigma 100-300mm
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Old Sep 29, 2010, 8:47 PM   #2
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i recently got the 60-250mm not really had a chance to put it through its paces but from the tests i have done it does seem like a very good lens

if your wanting something a little more affordable though there is the da 55-300mm - not a fixed aperture though and might be abit slow at the long end but its supposed to be quite sharp
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Old Sep 29, 2010, 11:48 PM   #3
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I use the 55-300 and have found it quite good. That is all I have above 50, and it does everything. Earlier in the summer, I was out and took some shots with the lens, and wound up posting the bottom 25% of a frame. It was nearly the shot I wanted, not not exactly - still looking for the "right" location with the "right" view - but this is close. I was going for the silhouette effect for the foreground.
Obviously you can do better with a prime, but - this works well for me...

I need to start getting home a bit earlier as I want shots of the distant mountains with the "purple" tint to them - and it will be a stitched 200-300mm shot.


Last edited by interested_observer; Sep 29, 2010 at 11:51 PM.
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Old Sep 30, 2010, 12:55 AM   #4
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tamron put out a new 70-300 VC (vibration control) lens that is quite excellent.

Its like 450 or 499 retail, which isnt bad IMO right off the market.

From what I can tell its so far only out for nikon but there may be a pentax/canon also I havent checked. Usually tamron is releasing their lenses for every mount out there. I saw some pics and its quite sharp. it also features their extra low dispersion glass and is extremely sharp.n Also is USD (ultra silent AF motor) and workes on full frame/cropped sensor. I was kind of struck by the low price but someone I know just got it and is loving it.
The XLD glass is sharp and punchy, the IF is always nice to have, it aparently has its own autofocus motor inside, and the VC is pretty much modified in lens shake reduction that would be absolutely perfect for sports/bikes etc. Depending on your camera you're shooting this might not be needed, but I saw some tests with the VC on/off and it made a world of difference with moving subjects.


300mm prime would be excellent and I have heard the non * version of the da 300 is quite sharp and a great lens, but Im afraid that (this all depends on where you're shooting from) If you're used to shooting closer, you will still want to retain that option. The 300mm is going to be difficult to get up close shots due to the speed of the bikes so you are going to run into the same issues, I would think. That is being stuck with a limited focal range. the 70-300 will allow you best of both worlds, shoot them when theyre on the closer part of track and be able to follow and get those long shots as well.


I dont do much of any of this type of shooting but just my opinions and something to think about

for me, primes are the way to go, but I would think for the type of shooting you're doing, a zoom would help.

Last edited by NMRecording; Sep 30, 2010 at 12:59 AM.
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Old Sep 30, 2010, 2:56 AM   #5
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Quote:
Originally Posted by John.Pattullo View Post
i recently got the 60-250mm not really had a chance to put it through its paces but from the tests i have done it does seem like a very good lens

if your wanting something a little more affordable though there is the da 55-300mm - not a fixed aperture though and might be abit slow at the long end but its supposed to be quite sharp
No i had the 55-300mm , for price/performance it's unbeatable but i found it too slow , too much zoom hunting and not quite sharp enough at the long range.
On the other end it was great to have such a reach in such a small package.
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Old Sep 30, 2010, 4:48 AM   #6
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if teh 55-300mm isn't sharp enough at the long end your gonna struggle without stumping up for the 60-250mm or getting a prime lens
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Old Sep 30, 2010, 5:02 AM   #7
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Quote:
Originally Posted by John.Pattullo View Post
if teh 55-300mm isn't sharp enough at the long end your gonna struggle without stumping up for the 60-250mm or getting a prime lens
Hesitating between 60-250 f/4 or Sigma 100-300f/4

When i compare the sharpness of my 50-135mm f/2.8 with the 55-300mm , it's mind blowing
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Old Sep 30, 2010, 5:14 AM   #8
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you might have had a bad 55-300 as it is by reputation (never used it personally) very sharp
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Old Sep 30, 2010, 8:41 AM   #9
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Quote:
Originally Posted by guillermovilas View Post
Hesitating between 60-250 f/4 or Sigma 100-300f/4
You may have a tough time buying a new Sigma 100-300f/4...I understand it is no longer in production.

Have you thought about the Sigma 70-200 f/2.8 + a teleconvertor? Unfortuantely, Pentax does not make a 70-200 f/2.8, but I hear that the Sigma is an excellent performing lens.
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Old Sep 30, 2010, 9:43 PM   #10
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While the 55-300 is a nice, light-weight lens and I have a good one, it doesn't match the quality/sharpness of the 50-135. I think if you want a zoom the Sigma 100-300 sounds like a good choice. The 60-250 is a brilliant lens, very sharp but I found it heavy and it is expensive. Depending on how and where you stand, the DA*300 could work, and its certainly an awesome lens. I love mine.
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