Please recommend a good quality m42 2x teleconverter

Started 5 months ago | Discussions thread
Ching-Kuang Shene
Ching-Kuang Shene Veteran Member • Posts: 6,369
Re: Please recommend a good quality m42 2x teleconverter
5

Racheal50 wrote:

Hi, as the title states, can someone please recommend a good quality m42 2x teleconverter that doesn't degrade image quality too much? Thanks.

Convert it to Pentax K (there is a M42 to K adapter) and use Pentax K or even newer Pentax teleconverters.  I did this for my CZJ Spiegelobjektiv 500/4 and 1000/5.6 to become 1000/8 and 2000/11.   Results: acceptable.  This is perhaps the best way as most M42 2X teleconverters are not very good.

CK

 Ching-Kuang Shene's gear list:Ching-Kuang Shene's gear list
Olympus D-600L Nikon D7100 Nikon Z7 Nikon AF-P 70-300mm F4.5-6.3G +2 more
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