Search results for 'back focus' - page 1066
macro on zoom lenses
The latest shot in my portfolio was taken in Macro Mode on the PENTAX-F smc 28-80mm F3.5-4.5 it's quite sharp and that's about as close as it goes although you can still focus. It's at 80mm on that lens. Click to see it full size. -
Posted by Algernon on 11/11/2012 - 18:18
macro on zoom lenses
There's normally a click stop to switch to macro on the 35-70 turn to 70mm and it will hit a stop... just apply a bit more force to go past the stop into the green letters 'MACRO' It allows focusing within the green letter area. To get back to normal force it past 70mm towards 35mm.
Posted by Algernon on 12/11/2012 - 11:05
macro on zoom lenses
Ah yes now I have the confidence to push the zoom past the macro mark I can get close focus, just what i wanted :D:D:D Thanks for all your replies. Dave
Posted by davem on 12/11/2012 - 11:31
SMC Pentax-M 1:3.5 135mm with fungus
All cleaned now everything done from the front as I had no luck moving the screws at the back two of them were solid but as it turned out I had no need to, now the lense lives for another day.
Posted by scouter on 13/11/2012 - 14:57
SMC Pentax-M 1:3.5 135mm with fungus
the Friendly Invasioned PENTAX_M 135mm.I need a advice how to clean front lenses .Back two lens cleaned now but how to unscrew front elements ?
Posted by samson51 on 26/01/2013 - 10:50
SMC Pentax-M 1:3.5 135mm with fungus
Hi, I recently got this lens and am trying to clean the fungus. I was able to remove one of the front element glass and clean it. I was not able to find way to reach other elements from front nor I was able to remove the screws from back. Is there a way to reach and clean all elements from front an...
Posted by xyzmurali on 07/11/2017 - 06:19
Lens Storage
OK, so I this topic has been done before, but I was wondering if anyone is a similar situation to me. The problem I have is my house. It is a 300 year old cob walled cottage with a thatched roof and small single glazed windows. To give you an idea of the inside conditions, Salt goes semi-liquified ...
Posted by Soran on 12/11/2012 - 23:24
Lens Storage
In terms of storing lenses in a dry environment, these are available on amazon: I have one of these. It holds a body and 3-6 lenses, depending on size. It is my main storage in the car. The humidity meter on the VAM box is rubbish, it read 60% with 'full' vacuum and a couple of revitalised ...
Posted by ambient housewife on 13/11/2012 - 18:44
Lens Storage
Just looked on Ebac's site. It seems most of these can extract up to 21 L a day but only have a 3.5 L tank, so it's going to stop after 6 hours anyway :( All the energy used is given off as heat plus heat is given off by the water condensing on the coil. So you probably get back twice as much...
Posted by Algernon on 14/11/2012 - 19:39
Lens Storage
Just looked on Ebac's site. It seems most of these can extract up to 21 L a day but only have a 3.5 L tank, so it's going to stop after 6 hours anyway :( Water extraction falls with room temperature. If the room is unheated, the extraction rate is much lower than the headline rate in the advertising...
Posted by andrewk on 14/11/2012 - 23:47
Lens Storage
Just looked on Ebac's site. It seems most of these can extract up to 21 L a day but only have a 3.5 L tank, so it's going to stop after 6 hours anyway :( My dehumidifier (can't remember the make) has an accessory in the form of a shallow funnel and plastic tube. The funnel can be inserted at th...
Posted by Mannesty on 15/11/2012 - 10:21
Lens Storage
21 L/day onto the floor can do a lot of damage. A floor gully would be the ideal solution and might not be such a bad idea in the dining room :shock: :mrgreen: This discussion is getting seriously out of hand (and off-topic?). :) 21 litres/day? AFAIK, the OP doesn't live in the Royal Albert ...
Posted by andrewk on 15/11/2012 - 11:28
Lens Storage
Can we get back on topic please and try to avoid descending into the ludicrous?
Posted by johnriley on 15/11/2012 - 12:15
Lens Prices November 2012
Some prices look alright, the 31 for instance. Some prices have been reduced back to where they were before the recent price hikes, which is of course a familiar marketing trick (by Pentax). Some prices remain enormously increased. Mixed bag for me. I'll wait until Pentax have decided the price h...
Posted by DrOrloff on 13/11/2012 - 11:31
Lens Prices November 2012
That's one of the prices that looks alright, there's a 12% or so saving off the longer term price which I don't think was raised like most of the other lenses. I wouldn't say that is exceptionally low but I agree it is a pretty good deal if you've been waiting to buy one. I've always felt the 31 i...
Posted by DrOrloff on 13/11/2012 - 12:17
Lens Prices November 2012
Hmm, looks like the FA35/2 has made a reappearance again! I wonder if it's back in production, or if they found a corner of a warehouse full of them.
Posted by Pentaxophile on 14/11/2012 - 14:15
Lens Prices November 2012
We staray from the point really. This was just meant to point out that there are some lower prices. We don't all constantly check so if anyone is looking to buy a lens this could be a moment to check if that lens (whatever it is) is looking good. There's no point wanting top quality gear but comp...
Posted by DrOrloff on 15/11/2012 - 10:58
Lens Prices November 2012
That's really interesting, although it doesn't work very well and defaults back to current pages. Still, first glance shows some interesting price movements, mostly upwards.
Posted by johnriley on 15/11/2012 - 14:56
Lens Prices November 2012
John, if you start at the first page and enter SRS web address, you get a page with all the dates that have been captured(blue circles) Like this: You can change the year at the top, and click links within the captured page, but these will often go to a " no archive exists" page or as you found o...
Posted by Soran on 15/11/2012 - 15:14
SIGMA 8 16 What Do Pentax Users Think?
I thought for quite a while about getting one, but in the end decided against. It can be used impressively, but like all ultra wide angles, it can too easily be misused. After a bit, once the novelty has worn off, acres of sky and foreground become tedious. And, counter-intuitively, given what it...
Posted by CMW on 13/11/2012 - 17:59
