On Jun 28, 2021, at 5:22 PM, jtainter <jtain...@mindspring.com> wrote:
> Bill wrote: > > "Does anyone know if the above mentioned lens needs a filter in the filter > drawer to achieve it's maximum magic? > "Thanks" > > Bill, the F* and FA* 600 F4 lenses do require a filter as part of the optical > system. I would therefore suspect that the A* 600 does also. I just had a look at the optical diagrams on the K-Mount Page. The F / FA optical diagram shows the filter as part of the optics but the A* 600/5.6 doesn't. I certainly wouldn't take that as gospel as I don't know where those diagrams come from. I'd tend to assume that any lens with a filter drawer would need the filter. Clear as mud :D Cheers, Dave -- %(real_name)s Pentax-Discuss Mail List To unsubscribe send an email to pdml-le...@pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
