Alternatives to go longer than 5Ds + 100-400mm 4.5-5.6L IS II

Started 4 months ago | Discussions thread
1Dx4me Veteran Member • Posts: 9,448
Re: Alternatives to go longer than 5Ds + 100-400mm 4.5-5.6L IS II

Igor Sotelo wrote:

It seems that the 800mm 5.6 AI-S or maybe the FD 800mm 5.6L are the cost efficient ways to gain considerable reach over 400mm.

Does it makes sense to get a Pentax 67 800mm 6.7 lens with EF, F or E adapter? The focal length equivalent is over 1600mm 6.7, and it comes with a dedicated 1.4X converter, making it around 2400mm 9.0 on full frame.

if your intention is to get larger (mm) for reach, go right ahead get mismatch lenses and couple them with adapters for use with different brand cameras, however, when i mount the 2.0x III TC on my canon 600mm II (1200mm f8.0) and take a shot, the outcome is not quite like high IQ shot for keeper, not near what come out with bare 600mm lens! good luck.

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