[kengoh]

K3 + Sigma 500 F4.5

[OreganicPhotography]

https://www.pentaxforums.com/forums/attachments/29-welcomes-introductions/269...421_141903.jpg

[LeRolls]

[zzeitg]

K3 + Sigma 500 F4.5

You keep assuring me that the most beautiful birds live in Singapore... Nice!

[Driline]

F*300

[WPRESTO]

300 f4 + 1.4X

[Driline]

300 f4 + 1.4X

Very nice shot. If I had the 1.4 maybe I could get that close too, but alas I do not

[Doundounba]

Very nice shot. If I had the 1.4 maybe I could get that close too, but alas I do not

No need for 400mm+ here...

Vivitar Series 105mm F/2.5 Macro (with Raynox DCR-250 for the second shot, x-posted from the Show Me Your Insects thread).

[WPRESTO]

Very nice shot. If I had the 1.4 maybe I could get that close too, but alas I do not

Despite any statements to the contrary, the 1.4X does cause some loss of IQ. I'm not at all certain that an image taken with the 300 + 1.4X would have better IQ than the same subject, same distance, 300 alone, then a deeper crop in PP. From images posted on another thread, it appears that the new 150~450 @ 450mm has better IQ than the 300 + 1.4X. Telextenders were really developed to provide cropping for chromes which were very difficult to crop after processing

[wuzet]

K-3, FA 31 Ltd.

[RAART]

Just random shot in the neighborhood... K3 with Sigma DC 18-50 ƒ2.8 EX Macro

[wuzet]

[Driline]

From images posted on another thread, it appears that the new 150~450 @ 450mm has better IQ than the 300 + 1.4X.

I agree with that statement.

[howieb101]

Taken with the K3 and Sigma 70-200 HSM II

[howieb101]

Taken with K3 and Sigma 170-500mm. This is an old Sigma model that I got for $450 New Zealand dollars. A bargain for an infrequently used lens. I always try to shoot F8 with this lens.

I must say that shooting large telephoto lenses isn't really that much fun. They are very cumbersome to use.

Howie B