I sometimes think that the term "endangered" should be altered to "infrequently seen" and "extinct" to "not recently seen" in many cases. Its surprising how many of the smaller endangered species turn out to exist in greater numbers than first thought and supposedly extinct ones reappear. http://www...

Hi John,

Mansfield, Nottinghamshire, UK?

DaveW

From the look of so many similar bellows for the leading camera names you wonder if most are subcontracted out to the same bellows maker and just badged.

DaveW

Have you tried one of those penetrating lubricants like WD40 to dissolve dirt and grease without disassembling? http://www.wd40.co.uk/index.cfm?articleid=31 Is it a Novoflex bellows as it has Alpa stamped on the front? ALPA was a camera company that used to make quality SLR's and lenses and I am not...

The way scrap is escalating its probably worth that in scrap metal.

Strange thing is Nikon's site doesn't seem to list it:-

http://www.microscopyu.com/museum/index.html

DaveW

Found this article on the web. This quote will interest Harold! :lol: "Moving from Film Digital equipment performs much better than film of the same sensor size, which is why a discussion of the limits imposed by the physics of light was not interesting in the past. This better performance, which to...

See:-

http://www.digicaminfo.btinternet.co.uk/macro1.htm

DaveW

Wonders of Google Toolbar translation Joaquim, quick translation into English!

Great link.

DaveW

Can't say my 70-180mm Micro Nikkor zoom ring is slightly notchy anymore Chris since with a little use the focusing and zoom action is now silky smooth, so it may have been either a slight burr on the plastic or the lubricant had dried out in places in storage and has now been spread evenly again in ...

One thing touched on but largely overlooked is the brains persistence of vision, though this is often ascribed to the eyes. If we did not have this we would see a cine film as a number of still pictures, not a moving one. But surely it also applies to still images in the brain. As said, the eye scan...

I was using "single image" in the sense that we do not see a separate image from each of our eyes side by side, but rather analogous to photostacking in that out brains "stacking software" combines them to produce a more 3D image. Therefore I see no reason why an insects brain does not perform a sim...

Whilst I suppose scientists are very clever, the basic fact is they are not flies so do not know how a flies brain sees the world and can only speculate. We have two eyes but our brain interprets them as a single image since basically you see with your brain because it interprets the images it recei...

We seem to have computer systems now Harold that can immediately switch in other power lines in seconds when one is hit by lightning and disabled. Trouble is they have not yet perfected similar systems for the utilities like the aircraft's that switches in another computer system in milliseconds whe...

The point was Harold the aircraft have 4 identical computer systems in case one or more malfunctions. Our essential and security services only seem to have one computer system, not 3 similar parallel backup's.

DaveW

The old saying "the bomber will always get through", though meant in a different context in the last war, still holds true. No measures will ever stop all threats. You cannot prevent occasionally some terrorists being successful, neither will you be able to prevent all cyber attacks. All any country...