Algi,

That would be "you're", surely................?

Roger.

The last few times I've changed lenses to and from my 100mm Dia macro and the sigma 150-500 (my most-used lenses)on my K5, both lenses have mounted smoothly enough but when taking either of them off, the lens needs more than the "usual" amount of oomph to turn to the unlocked position.

Is this general grime on the mount and, if so, what's the best cleaner, lens cleaning fluid....?


Or, should one as a matter of "servicing", lubricate the lens mount? With.....?

Thanks for your time,

Roger.

Thanks, all, for your most interesting & useful thoughts!

I shall return to the drawing board re noise reduction, then.
Particularly in respect of more careful exposure in the first place and more critical noise reduction in post-processing, if and when necessary!

Thanks again,

Roger.

Just for general interest & for those who haven't come across it before, I thought I'd show the effect of using Neat Image for noise reduction.

Below are a before & after pair.......


Before



After



I've used NI for some time & I think it's really good. It's also free!

The only (slight) disadvantage is that it doesn't retain the exif, well not in the free version, anyway.



Any thoughts?

Roger.

Both arrived this morning after a very fast & efficient transaction, wonderfully packaged, too!

Most grateful & very pleased with the flash diffuser cover, which appeared as a free extra!

For my part, Christopher is a very highly recommended seller!

Thanks again, CMW!

Roger.

PM sent.

Roger.

This tree is being "guarded" by a pair of mistle thrushes as their "home" tree this winter.
They save the berries, eat any others they can find elsewhere, safe in the knowledge they've always "their" supply safe & sound from all-comers.


K5, 150-500, handheld through our slightly open front door.

















Any thoughts, most welcome,

Roger.

Erm.......

How do I hold the shutter open ready for the CIF to work?

Roger.

Thanks chaps for the very full &whelp full suggestions!

Brilliant, Vic!!!!!
Never thought of that. Doh!

I have the k5, and use CIF quite a bit, but never thought laterally, or not enought anyway!

Thanks again, all.

Roger.

Thanks for that, Steve.

I'm thinking of setting-up to capture garden bird images (initially), remotely from the conservatory.

What could be an alternative device for someone a fairly tight budget..........?

Thanks again,

Roger.