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

Recent content by thomasbarker81

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    Original 823 eyepiece to 883 converter

    Tanks very much, clearly I didn't look hard enough! Much appreciated.
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    Original 823 eyepiece to 883 converter

    I am looking to use an original 823 32x eyepiece on a Kowa 883, but am struggling to find info on any available converters. Does anyone know if one exists? Cheers, Tom
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    Thoughts about my 'new' Kowa 883 compared to my old 823

    I have just become the owner of an ex-demo Kowa 883 having used a Kowa 823 for the last 22 years. I really, really like it does make me realise how good the 823 was, the 883 is a little bit brighter and a smidgeon better resolution but the step up is fairly small, perhaps my 823 was a cherry...
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    Black Guillemots Anglesey

    Thanks for all the tips
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    Black Guillemots Anglesey

    I am visiting North Wales next week and will on Anglesey for several days. Any tips as to the best place for Black Guillemotes would be much appreciated. Thanks, Tom
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    February seawatching Fuerteventura

    I'll be in Fuerteventura in a couple of weeks. Is there any point in trying seawatching, I'm thinking in terms of possibly seeing Cory's Shearwater. Or is it the wrong time of year? Thanks, Tom
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    Pelagic bird trips?

    Does anyone have experience of pelagics from cornwall? I would like to do a Scilly pelagic but this requires getting to Scilly which i don't want to do, at least not this summer. Tom
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    semi palmated sandpiper?

    I was just reminiscing about trip to the US last summer and looking through photos. At the time I put this down as a Bairds, but is it actually semi-palmated? Tom
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    Decisions Decisions...

    I can add some thoughts with regards to the Helios... I have just bought a Helios Fieldmaster ED60DS as I like to have a back up scope/travel scope to my big Kowa. I did have an Opticron GS665 but this blew over in the wind whilst I was trying to see a Long billed Dowitcher. The scope was a...
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    Helios fieldmaster ed60?

    Thanks for that, there is little info out there. Seems it is the same as the Theron saker scope from US which gets good reviews.
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    Helios fieldmaster ed60?

    Has anyone any experience of the Helios fieldmaster ed60?
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    Why does a bigger objective lens give better resolution

    Can someone give a layman's explanation of why the larger an objective lens is the greater the resolution is?
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    Solitary or spotted sandpiper?

    anyone else? initially thought spotted but then the more I look at it I'm thinking solitary
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    Which bird have you wanted to claim but couldnt

    I was at Dungeness in August a few years a go, I got onto a falcon at some distance, it was small dark and quickly moving away from me and it felt very good for Eleonora's Falcon but poor views for 30 seconds meant I didn't do anything about it. Then a couple of days later one was seen and...
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    Solitary or spotted sandpiper?

    From a trip to the pantanal, spotted or solitary sandpiper?
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