Recently I saw a photo using a telephoto with a telephoto flash extender. Has anyone used one, specifically for bird photography? If you have comment out it's use and it it practical?

Have you used flash with Live Composite? I did but my setting was not sufficient. From AI claimed that the flash would fire on the initial shutter press but it fired on both the first and second press. But I can't find the image. My purpose was to use low power flash 1/8 or lower to have the base image exposed sufficient to have the background bright enough to have detail but not so bright that is took away from the night time. I'll be tiring it again and update in a comment. Have you attempted and what was your process and results?

I often forget to use the https://learnandsupport.getolympus.com/ which has a wealth of information. Recently I was looking for information on Macro on a Skool Community and suggested this link. Have you visited this site? What is your experience?

On my OM-D E-M5 iii I have the ability to have 3 settings and Off. For BiF and my 75-300mm I set a maximum 150M. Often times for baseball with me in the stands I set shortest to beyond the safety net and just beyond the longest outfield marker. Depending on the scene determine the AF Limiter ON or OFF. Do you it and has it helped your photography?

I choose the Hobby trial pricing plan to gauge interest in this community. We have 4 members. I'm retired and have a fixed income. I well end this community at the end of the trial period. You can find me on my blog https://larrysphotography41.blogspot.com/?m=1 and on my discord server https://discord.gg/A59KQY95FN