• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

thxpress_search_the_forum Search Opus
  1. P

    Exposure Chip

    Nipon make one which you can see here. http://www.nipon-scope.com/index.php?main_page=product_info&cPath=32_33&products_id=113 This Orion one on Amazon but shipped from America. https://www.amazon.co.uk/Orion-Superwide-Prime-Adapter-Cameras/dp/B0181YLK96 Paul.
  2. P

    Exposure Chip

    I removed the tube holding the glass and mounted it in one of those cheap screw together macro tubes. Best thing is that when the front bayonet section is screwed onto the macro tube, it clamps down onto the teleconverter tube making mounting it really easy. Front element is 1.25" dia and the...
  3. P

    Exposure Chip

    Compared a couple of TC's with the Sunagor 100-200mm TN yesterday. Used my big Vivitar TC for Pentax 6x7 medium format which I really like and it gives the least amount of mag out of the 3. There's a thread on that medium format TC here http://www.birdforum.net/showthread.php?t=302899 Second...
  4. P

    Exposure Chip

    That's ebay though, some weeks none and other weeks maybe a few. The other mounts like Pentax and Olympus are much more common. Last year I got two in Nikon mount, one for a bargain £12 and the other one was nearly £32. Just a case of waiting for that one seller who doesn't really know what they...
  5. P

    Exposure Chip

    Just measured mine to be sure and it's in the region of 18mm, thought it was more than that. Still a handy amount and they are very well made with a smooth action. Thread here showing retracted and extended. http://www.birdforum.net/showthread.php?t=280352 Paul.
  6. P

    Exposure Chip

    Look for the Vivitar or the Teleplus ones. One is a rebranded version of the other. With that type, the front of the teleconverter extends out as you turn the rubber grip. As a 2x teleconverter they are pretty sharp too so the housing that holds the elements is worth keeping. I have two in Nikon...
  7. P

    Exposure Chip

    Managed to get a set of 3 nice bayonet ones for my Nikon. I have a set of the threaded ones too but you never know if you will get a tight fitting with that sort, they can tend to have a bit of play in them. I also use an empty Vivitar macro focusing TC that I removed the TC from. That gives me...
Back
Top