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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Recent content by erwinx

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    EF 100-400 or EF 300

    Thanks for the link. I note that photozone also complained about varying quality in different samples of the 100-400. http://photozone.de/8Reviews/lenses/canon_100400_4556_is/index.htm Again, I reiterate that preference for web-sized images has little correlation to lens performance. I am sure...
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    EF 100-400 or EF 300

    heres yet another previous thread and my comments on the 300 v 100-400: http://www.birdforum.net/showpost.php?p=929912&postcount=22 and also note my comment that you can't really tell anything about lens quality from web-sized images. But if you want reviews, there's Bob Atkins from photo.net...
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    Canon 100-400 and Kenko 1,4 - nice !!!

    I am never sure how helpful web-sized post-processed pics are in evaluating image quality, but here's a shot taken with an ancient Canon D60 with 300 f/4 + 1.4x + 2x (stacked converters) tracking a moving Egret via manual focus. personally, I can't see a difference between the web-size image...
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    Photographing waders

    I would love to see waders with some summer plumage so I hope to be able to join you guys on any photo outings.... I'm currently in London
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    Which 300mm lens? / Camera settings

    I would pick the 300 f/4 IS. I find this a very nice lens to handhold and it has superb image quality with or without a 1.4x TC. In good light, you can good images with a 1.4x and 2x TC stacked. Then there's its 1.5m minimum focusing distance which means that with a short extension tube, it's...
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    Sensor cleaning-- a different question

    the sensor brush works as advertised. It works even if I don't have compressed air/arctic butterfly and just 'charge' it by using an ordinary blower... (perhaps it will work even better if properly 'charged') A good review of it can be found at robgalbraith.com (usage by actual press/sports...
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    Canon 100-400 mm f/4.5-5.6IS vs. 300mm f/4 IS

    the above discussion illustrates the point that the 100-400 is a great general purpose lens. If I were going on a safari and could only bring one lens to shoot large animals to small birds, 100-400 would be a good choice. On the other hand, if I wish to specialise in shooting, say, birds in my...
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    Canon 100-400 mm f/4.5-5.6IS vs. 300mm f/4 IS

    I was not particularly impressed by the 100-400 samples I've seen at max zoom and wide open. Maybe they were well-used lenses with minute optical errors and accumulated dust/dirt caused by years of pushing and pulling the zoom. Coincidentally, this is the view shared by Bob Atikins (if you read...
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    Canon 100-400 mm f/4.5-5.6IS vs. 300mm f/4 IS

    definitely the 300 f/4 if bird photography is your primary area. It's optically superior to the 100-400 even with 1.4x TC attached, faster in AF, better resistance to dust and sand.
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    Farne islands

    After a whole lot of bad weather and 1 previous washed-out visit, I finally spent 1/2 a day on Farne last Sunday. I hope to come back again in mid July (i.e. around 15 July onwards).... will the Puffins and Terns be there (even if in lesser numbers? Even if you don't land, a sail around the...
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    Puffins - Skomer or Farnes in June?

    thanks everyone for their informative replies. Am looking forward to returing to the UK :)
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    Puffins - Skomer or Farnes in June?

    Hi, i'm planning a trip to the uk in june 2004 and would like to go and see and photograph puffins. I've been to the Farne islands before and enjoyed myself, but photography was a bit rushed because we had only 1/2 day per island. Am wondering whether Skomer would be better? Are the Puffins at...
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