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<blockquote data-quote="Mycenius" data-source="post: 168426" data-attributes="member: 14714">OK - so unless I have missed the boat the 70-300 is not a DX lens, so when mounted on your D90 (which is DX format) it is actually equivalent to a 105-450mm - so if 450mm is proving insufficient it sounds like you need to go to a true Telepoto lens of some sort...? At least that's how I would see it - I wouldn't bother mucking around with TCs...?e.g. AF-S Nikkor 300mm f/4D ED-IF or similar which is also 450mm on the D90 but has slightly better magnification than the 70-300 does at that distance (and should be much sharper).You can also look at doing a 'digital zoom' in post-processing by cropping your images down a bit... The 12MP on the D90 gives you enough to do this unless you want to print it very large...Otherwise you need to use Shanks' (Pony) Zoom and get physically closer to your subjects! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin&nbsp; &nbsp; :D" loading="lazy" data-shortname=":D" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink&nbsp; &nbsp; ;)" loading="lazy" data-shortname=";)" /></blockquote>

[QUOTE="Mycenius, post: 168426, member: 14714"] OK - so unless I have missed the boat the 70-300 is not a DX lens, so when mounted on your D90 (which is DX format) it is actually equivalent to a 105-450mm - so if 450mm is proving insufficient it sounds like you need to go to a true Telepoto lens of some sort...? At least that's how I would see it - I wouldn't bother mucking around with TCs...? e.g. AF-S Nikkor 300mm f/4D ED-IF or similar which is also 450mm on the D90 but has slightly better magnification than the 70-300 does at that distance (and should be much sharper). You can also look at doing a 'digital zoom' in post-processing by cropping your images down a bit... The 12MP on the D90 gives you enough to do this unless you want to print it very large... Otherwise you need to use Shanks' (Pony) Zoom and get physically closer to your subjects! :D ;) [/QUOTE]

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