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I got this Teleconverter cheap, not something I would actively go out and buy, however i think I may have a use for it.

Quality wise, I am on the fence at the moment, I guess you really need good glass to get the best benefits of this kind os converter. Anyone else got one of these?

First day with a bit of sunshine and the opportunity for something in the distance! taken with the 100-300mm at f5.6 iso 200 1/1500s

Gerry, the background and the lighting makes to plane look like it's been cut and pasted. I doubt this is anything to do with the lens or converter.

Do you have any other shots from this? Is this at 600mm effective length?

I have a TC200, essentially the same thing, which I have probably had for 25 years. None of the reviews are very complimentary and I haven't used it since I got my D3. My longest lens is a 300mm f4 and I sometimes use that with a TC14E, which works well enough. I would have thought it would take a prime or a high range zoom for it to be reasonably viable but then teleconverters can behave differently with different lenses. I guess the practical test would be to compare an image using it to a crop without it.

Do you have any other shots from this? Is this at 600mm effective length?

heres one from tonight.. its a hit and miss with this I find... I used a tripod and another stand for teh lens..

300 * 1.5 * 2 = 900mm ??

Nice one Gerry,

I have a funny feeling you are not getting quite 900mm ??? Shouldn't the moon be bigger??? Oh wait, I think I used a 1200mm telescope back then to view the moon bigger. Perhaps this is the right size?

It looks sharp as a web image. I guess the tripod and the stand was the key to minimise vibration.

That moon looks great Gerry...how long was the exposure? It wouldnt have been too long though!

I'd like to see the moon cropped to fill the frame. Otherwise, great.

Oh and Cameron, EXIF says 1/125s

I guess the practical test would be to compare an image using it to a crop without it

yeah, i have done this in a qualitative terms and it does come across quite soft on the 100-300mm...i will try and do a proper comparison one day..

I'd like to see the moon cropped to fill the frame

hows this?

for completeness, here is the original file, no sharp, resized and jpeged and a 100% crop.