All Forum Comments
Comment by johnha posted on FS: Various film era lenses & bit's 'n pieces at 07/12/2018 - 17:43
The Olympus OM Refconverter which fits Pentax M series and later is also reversed.--
Comment by johnha posted on FS: Pentax Refconverter (Spotmatic, K series) at 05/12/2018 - 00:10
For sale, prices shown include UK postage (happy to bundle and adjust accordingly). Lenses have slight dust but no fungus inside them:
1) Pentax SFX(n) ever ready case (tatty): I didn't even know they made these until an SFX arrived in it: £10
2) SFX(n) AA Battery grip: The real deal (not mistaken for the 2CR5 grip): £25
3) Pentax F 70-210 f/4-5.6 (non-SMC, AF problem): When auto-focussing on my K-5, the focus rings sticks half-way through it's travel and the camera thinks it's hit the end-stop and refuses to drive it further. Manually focusing is OK - treat it as a manual focus KA lens: £20
4) Pentax FA 28-80 F/3.5-4.7 Power zoom lens (PZ A/S mode switch broken, tatty): Unfairly graded in the PentaxForums lens reviews IMHO (I think they're better than the later 'silver' FA versions). Zoom ring gives the impression of being gritty but they were all like that when new due to the PZ mechanism. Basic PZ function works on my K-5 & K-1: £20
Thanks for looking.
John.
Comment by johnha posted on FS: Various film era lenses & bit's 'n pieces at 04/12/2018 - 13:48
Comment by johnha posted on FS: Pentax Refconverter (Spotmatic, K series) at 04/12/2018 - 13:37
Comment by johnha posted on Older Flashguns. at 04/12/2018 - 13:36
Comment by johnha posted on FS: Pentax K 135mm f2.5 + original lens hood at 04/12/2018 - 13:34
General wisdom from the web would suggest you need to remove the Ricoh pin. I have removed mine (see below). The profile of pins seems to vary by manufacturer from fairly 'sharp' to smooth & rounded (as does the 'sprung' mechanism pushing them out).
I'd recommend this procedure for removing it (takes 5 mins): link
John.
Comment by johnha posted on Having trouble identifying a lens...!! at 28/11/2018 - 15:16
And this is the usual place where someone always adds that you have to be extremely careful not to touch something inside that is going to give you a nasty shock....
Electrolytic capacitors are polarised (marked on the can), you need high quality and precise soldering anywhere near them. A 'normal' electrolytic capacitor is the size of two LR44 batteries, these things are the size of C cell batteries.
I had a tiddler flashgun stop working - GN 28, despite my attempts to drain the charge (the fault was between the TEST switch and the cap), I received a huge belt from the capacitor (along with beautiful iridescent blue sparks...).
Comment by johnha posted on Older Flashguns. at 26/11/2018 - 22:47
From what I've read, the F/FA 50/1.7 have better flare control than the FA f/1.4 (the front element is recessed a bit) - then again a simple rubber hood fixes it. My experience suggests the F lenses AF slightly faster than FA lenses (less damping of the focussing ring) , but they give less feedback when manual focussing as a result.
Comment by johnha posted on Looking for a New 50mm lens... at 25/11/2018 - 23:51
'Elitechromes' - Never come across those, were they any good? Any examples you an upload? Their price was certainly reasonable, can you still get them?
I much preferred Kodachrome, I shot roll after roll after roll - it was £7 for 36 exposures including processing.
Comment by johnha posted on New Ektachrome at 21/11/2018 - 21:33

