View single post by blackfox
 Posted: Wed Jul 31st, 2019 04:49
blackfox



Joined: Thu Apr 12th, 2012
Location: Flint, North Wales, United Kingdom
Posts: 1245
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 Wise words there Eric , I have used the same t.c on a previous lens the sigma sport (canon fit) and using it on a 1D3 and 1D4 which are both canons H sensor so near to full frame size . And with good results . 
   This is my first attempt at using it on a aps.c sensor and I'm finding noise is a major issue . I will be checking on MA as well later today . Making some progress with it but in mulling things over my own initial testing is flawed by trying to find targets , at this time of year a lot of wildlife is very wary and basically I'm not getting close enough which then dictates cropping the image. Got a rainy day today to play around and do further testing .
     Your findings re.tc quality is also useful as I'm considering getting rid of the big sigma and going back to a  300mm F4 which will then need at least a 1.4 tc .having used one before I know they are superb , this all depends on my health recovery as equipment weight is now a issue