All Forum Comments
Comment by davex posted on cokin filter? at 15/08/2009 - 17:14
Davex.
Comment by davex posted on What lens do I need? at 15/08/2009 - 14:46
It might be the way for you Davex but I've my pol filter on almost 100% of the time. The holder you need for the filter makes the lens front heavy and also longer and wider then with a screw-in.
Also buying a square system filter for just a pol seems a bit silly to me when a Hoya or B&W are better and just as expensive as buying a holder and a pol filter and the rest what you need for a square filter
For saving some money you can buy a 52mm pol that fits straight on the 18-55 and use a 52mm to 49mm stepdown ring so that you can use the 52mm pol on a 49mm filter size.
The 50-200 and the macro are 49mm and also the 50mm I believe so you cover 4 lenses with just one filter.
My thoughts, for what they are worth, are thus;
If you want to try a pol go with Stefan`s suggestions, unless you think you may wish to try other filters, in which case get a square system. Incidently, while you should always get the best filters you can afford the holder and stepping rings can be bought off ebay much cheaper. try here.
Davex.
Comment by davex posted on cokin filter? at 15/08/2009 - 07:29
For the pol I would get a screw-in filter they are simpler and far more user friendly
Davex.
Comment by davex posted on cokin filter? at 14/08/2009 - 22:47
Davex.
Comment by davex posted on wanted tammy at 14/08/2009 - 15:59
Sorry Davex - you have obviously chosen good subjects and thought about the framing. I didn't want to launch into an unsolicited criticism of your photos - I just wanted to make sure that Emma and other readers understand what they are looking at.
Davex, were you using a tripod or the shake reduction? I would suggest that, whatever happened, 1/180s at 300mm, for example, was not sufficient to prevent blur.
I have no probablem with any criticism of my shots Derek, as long as it is constructive, or meant well. Your`s was.
Davex.
Comment by davex posted on Squirrel Steals The Show at 14/08/2009 - 11:10
Shaking the sensor inevitably puts some stress on the mounts
Comment by davex posted on K20 sensor clean on start up at 13/08/2009 - 13:09







I've used the Cokin Z-pro with a screw-in pol without any problems you just need to have a finger on the pol if you turn the holder.
If you have pol inside the holder then when you turn the holder you need to re-adjust the pol again so it might even be handier to have a pol screw-in pol then a Cokin pol.
It is not crucial to get a circular polarising filter, a linear polarising filter will also work on Pentax DSLRs despite what many people will tell you!
Davex.