OPCMember Gopala Krishna Baliga
OPCMemberForum Replies Created
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Thank you Sunil Rao
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Depends on your budget. 70-300 Range is the basic wildlife lens. If you need longer reach you can go for Tamron / Sigma 15-600, If you want original Canon, you can go for Canon 100-400…. there is no end to higher end… there are more.
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It will downgrade your F4 aperture by two stops. That is to f/8 ( First stop F/5.6, second F/8). It will downgrade sharpness slightly. You will get x2 focal length
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Extension Tubes are used in Macro Photography. They just bring the plane of focus closer to your lens and magnify the subject. You must have confused them with Extenders which are lens systems which take your focal plane farther away and act as telescopic additions to your lens.