R5 lunar photography with stacked EF extenders

Started Dec 14, 2021 | Discussions thread
Leeuw Regular Member • Posts: 109
Re: R5 lunar photography with stacked EF extenders

Canon’s 2x ii extender can be stacked with the type iii extenders. Having 2x ii, 2x iii and 1,4x iii gives me several options to combine with my EF 600 f/4 II and R5.
This thread inspires me to start some experiments. For instance how would the 2x + 2x double stack perform. Maybe a bridge too far but why not give it a try.
And thanks diarimarcopolo for showing your 8K video stack.
For high magnification lunar photography I have used the 600mm with a 4x Televue barlow (even combined with a Canon extender) and a planetary camera (ZWO ASI174mm) with high frame rate for stacking.
Now with the R5 it is very interesting to explore the video option in combination with the extenders.

This is a single shot some years ago with a 7D MKII and 2x extender.

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