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James Markus wrote:
Lots of wonderful photos! Anyone have any experience with the Nikon TC-14a? Bjørn Rørslett gave it a craptacular rating. I have one on loan at the moment - and from what I have read they are intended for use on 200mm (some say 300mm) or shorter lenses. Uwe Steinmueller seems to have gotten decent results on a 80-400 vr.
James, this TC is the only which will fit in 200mm or smaller Nikkor focal lenghts. I have some samples shots:
Cetoniinae Flower Scarab (genus Gymnetis) with "77mm f/5" Micro Nikkor by labecoaves, on Flickr
Cetoniinae Flower Scarab (genus Gymnetis) with "77mm f/5" Micro Nikkor
D7000 + TC14A + Micro Nikkor 55mm f/3.5 AI (=77mm f/5) + SB800 flash with diffuser + tripod. ~10% crop. ISO 320, f/11 at 1/60s.
Sayaca Tanager x banana 60% crop by labecoaves, on Flickr
Sayaca Tanager x banana 60% crop
Sayaca Tanager (Thraupis sayaca) around 3 m of distance. D7000 + TC14A + Nikkor 180mm f/2.8 ais (= 252mm f/4); hand held, ISO 320, f/5.6 & 1/500s. The image is a ~ 60% crop.
And some "not recommended" setups, that is, with longer than 200mm lenses:
_DTR1662dpreview by labecoaves, on Flickr
Candid shot of a couple, D300 + 800mm f/5.6 ais + TC14A = 1120mmf/8
ISO640, no crop, couple at ~ 120m.
I know, I know, TC14B is the correct TC according to Nikon, but this "wrong" TC14A works!
DTR1605 Adult Sayaca Tanager at 20m by labecoaves, on Flickr
Adult Sayaca Tanager at 20m
D300 + Nikkor 800mm f/5.6 + TC14A = 1120mm f/8 + tripod. 35% crop. The "wrong" TC works again.
With these longer than 200mm lenses in FX there is vignetting, but on a DX crop I think there is no concern.
Unfortunately I have no expriences with the TC14B to compare, but regarding to the TC14EII, this is sharper at borders and have less or no CA.