 Linda Sandbo |
image stabilization Hi again guys, how do you quantify IS vs non IS.... how much , or what percentage of handshake does it improve,etc. I have a 70-200mm L series lens and a 2x extender... I'm considering a 100-400mm L series IS lens... I seem to have a problem with handshake with the 2x on my 70-200... will the 100-400 L IS compensate or will it be the same issue of being able to hold it without a monopod or tripod.... Hoping I'm asking this correctly... forgive me if I'm not technical enough.. just wondering if it is worth the $$$ to get the Image Stabilization. Thanks.... Linda
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Jeffrey R. Whitmoyer |
I seem to recall that IS should be worth about 2 stops, which is a considerable amount of light. Don't forget that with a good DSLR you can also change ISO without a lot of hassle which will buy you a faster shutter speed at a given aperture, thus reducing apparent shake. You do have to be conscious of the ISO that starts to increase the noise level though. BTW, you have some great images in your gallery. I am fond of NC, both mountain and shore points, but am trapped in PA. Jeff
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Linda Sandbo |
Thanks Jeff, just trying to make the right choice with the $$ that I have. And thanks for the compliment on my images... I have not downloaded much in awhile..... Need to update my site... My backyard provides so much... I'm blessed... I know I need better zoom and the ability to shoot from the hip.. I'm not one to set up with a tripod... it's catching the right shot at the right time and getting the detail.. For example, on the way home yesterday, I caught a glimpse of an awesome Osprey in a dead pine.... beautiful creature. It was a mature big bird... I only had my 70-200 lens.. and just could not get close enough for the "good" shot. I want a better zoom, but I have a 2x extender, but it just seems heavy to me and I don't keep it on my camera.... and I miss those shots... very frustrated and hoping that a stronger zoom will help... Thanks for your input.... Linda
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Jeffrey R. Whitmoyer |
Linda, The 2x extender will cost you 2 stops of light, so you definitely need to go another route. With IS you would end up where you started. Also, a longer lens will transmit more shake since it is magnified by the length of the lens. IS should compensate for most of that though. Outdoor Photographer had an article a month or 2 ago on determining where shake becomes evident and controlling it. Check out their website, the article may be online. I know how much of a PITA carrying a tripod can be, but, the 3 main rules for sharp photos are: Tripod, Tripod, Tripod. I carry mine into the back country around here with camera attached and legs extended out behind me. My hands cradle the camera to keep it from falling if there should be an issue with the quick release. A few miles like that does get old. It's a matter of opening up the legs when I get to my location, brush sometimes provides some issues maneuvering the legs around. Jeff
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- Carlton Ward Contact Carlton Ward Carlton Ward's Gallery |
I would like to echo Jeffs tripod statement. I have 2 tripod/ballhead setups (one is a very light carbon fiber tripod for hiking) but if my camera leaves the house, so does my tripod. I use my 100-400mm lens on the tripod all the time. Just turn IS to "OFF" but on a monopod ot handheld, you can leave IS "ON". And with a tripod, you can get those wide angle f/22 5 second shots landscape shots. Cheers, Carlton
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Linda Sandbo |
Thanks for all of your help!
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