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02-07-2011, 11:39 AM   #1
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suitable lens

hello,i have a pentax k100d,my question is ,will a Takina SD 70-210 lens be suitable for this camera,and what settings will i need to do,if any,would like to use it at a forth coming airshow at Waddington in June!-many thanks

Last edited by oldgoat; 02-08-2011 at 11:06 AM.
02-07-2011, 12:35 PM   #2
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If the Tokina has a Pentax K mount, then it will be usable on your K100d. Often at airshows I like to use a wide angle lens (for shots of the planes while they are on the ground); and as much zoom as I can get for the aerial shots. The Tokina you are talking about is neither wide nor long. But if it what you have, then it is what you have.
02-07-2011, 03:17 PM   #3
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70 is kind of long for air shows when the planes come by flying low.
02-07-2011, 11:46 PM   #4
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Like clmonk said, if it is a K-Mount then yes it will fit but it won't be the best lens for an air show Plus if that Tokina is MF it will make it pretty hard to focus on moving objects. If you want one lens that can do most any shot at an air show I would go with the DA 18-250mm. That will be able to cover the wide angle ground shots and the long aerial shots.

02-08-2011, 10:39 AM   #5
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hi every one,many thanks for these great replies,taking it all in,the DA 18-255,will be the better suiting,thanxs Kxblaze,the Tokina does fit my Pentax but when i turn it on,press shutter release,nothing happens,so what now!
02-08-2011, 10:48 AM   #6
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If it is a manual lens and it doesn't have the A position on the aperture ring, you will need to set Use Aperture ring to permitted in the custom menus.
02-08-2011, 01:27 PM   #7
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Hey, Oldgoat, the manual is your friend! Consult it often.
02-08-2011, 05:09 PM   #8

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I have no idea what the features of a Tokina SD 70-210 are (aperture, etc.) but air shows (the portion in the air) might have some unusual requirements, such as low purple fringing. So to the extent that there is an overlap in the functionality of the lenses you have, you might make some comparisons specific to the types of pictures you're going to be taking. Sometimes lenses that excel in one characteristic don't do well in others, etc.


02-08-2011, 10:43 PM   #9
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I've been to a lot of air shows. One thing is certain - nothing is for certain. On the ground, a 12-24 is handy. In the air, the longest you have....250 is barely there.

Here is a post with the focal length for each shot. I was pretty close to the action, too...
02-08-2011, 10:53 PM   #10
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If you are on a tight budget, I would suggest taking a look at 1m000m MF mirror lens (with the 2X converter that comes with it). Use "Catch-in-focus" when the planes whizz overhead.
02-09-2011, 04:06 AM   #11
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My own airshow photos were taken with a 70-300mm on an E510 - that equates to 140-600mm in 35mm terms. But I was stood on a hill 5 miles away!

Leuchars Airshow 2010 - a set on Flickr

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