All Forum Comments
Comment by bychan posted on K5 sensor stain or something else at 29/09/2011 - 01:06
davidstorm wrote:
Hi all
I'm sure others have experienced the issues I am having at present. I often use polarisers, but have only recently bought a 58mm for my DA L 55-300mm. I have found it useless as the lens focus is so soft with the filter fitted that the pictures are not worth keeping. This worsens the longer the focal length gets. I've tried the filter on shorter lenses and it seems fine. I've also confirmed it is a circular polariser and not a linear one by dong the 'eye and mirror' test. The filter itself looks perfect when viewed with the naked eye (no blurring) it is only when on the 55-300 that issues occur.
Doe anyone have any suggestions for a reasonably priced circular polariser for the 55-300mm that works well without the focus issue?
Thanks in advance
David
I hardly ever take the Hoya Pro1 CPL off my 55-300, and haven't come across any problems with the Kx nor K5.Hi all
I'm sure others have experienced the issues I am having at present. I often use polarisers, but have only recently bought a 58mm for my DA L 55-300mm. I have found it useless as the lens focus is so soft with the filter fitted that the pictures are not worth keeping. This worsens the longer the focal length gets. I've tried the filter on shorter lenses and it seems fine. I've also confirmed it is a circular polariser and not a linear one by dong the 'eye and mirror' test. The filter itself looks perfect when viewed with the naked eye (no blurring) it is only when on the 55-300 that issues occur.
Doe anyone have any suggestions for a reasonably priced circular polariser for the 55-300mm that works well without the focus issue?
Thanks in advance
David
Here's one taken on a recent holiday in Kos, K5 set to TAV f4.5 @ 1/500 170mm
Regards
Adrian
Comment by bychan posted on Focus Issues with 55-300mm and Circular Polariser at 28/09/2011 - 01:01
Thanks Dave, hopefully it won't get any worse so I'll live with it (as I've done previously)
Regards
Adrian
Regards
Adrian
Comment by bychan posted on Viewfinder dust at 20/09/2011 - 01:30
Recently I noticed a speck of dust in the viewfinder on my K5.
The rocket blower eventually got rid of this.
However a couple more different specs have now appeared, and these will not budge with the rocket blower
I know from previous experience from having the same 'problem' with the K100D and Kx, that these are only cosmetic, and don't hinder shooting or appear on the images (they are only small spots).
I have the Pentax O-ICK1 cleaning stick, could this be used on the focusing screen (which is where I presume where the dust is)?
Or is it best left alone?
Thanks
Adrian
The rocket blower eventually got rid of this.
However a couple more different specs have now appeared, and these will not budge with the rocket blower
I know from previous experience from having the same 'problem' with the K100D and Kx, that these are only cosmetic, and don't hinder shooting or appear on the images (they are only small spots).
I have the Pentax O-ICK1 cleaning stick, could this be used on the focusing screen (which is where I presume where the dust is)?
Or is it best left alone?
Thanks
Adrian
Comment by bychan posted on Viewfinder dust at 18/09/2011 - 20:14
I've lost count of the number of images I've taken of the old pier in our village, somehow I'm never happy with the results
Sadly the pier is in decline, with the local Council having closed it down (although it can still be accessed by climbing through the fencing and walking along a narrow ledge).
Some of the supporting beams have completely fallen off, which can be seen at low water.
The first 3 were taken following a heavy downpour (I only had a small window as another downpour was imminent).
All with the K5 and Sigma 10-20.
1
2
3
4
5
Regards
Adrian
Sadly the pier is in decline, with the local Council having closed it down (although it can still be accessed by climbing through the fencing and walking along a narrow ledge).
Some of the supporting beams have completely fallen off, which can be seen at low water.
The first 3 were taken following a heavy downpour (I only had a small window as another downpour was imminent).
All with the K5 and Sigma 10-20.
1
2
3
4
5
Regards
Adrian
Comment by bychan posted on Trefor Pier at 29/08/2011 - 15:38
tyronet2000 and Kris, thanks for your kind comments.
Regards
Adrian
Regards
Adrian
Comment by bychan posted on Cwm Ystradllyn at 26/08/2011 - 00:58
tyronet2000 wrote:
Polariser: Because of the size required 77mm (thin and/or pro) this filter seem very expensive. I've read somewhere its recommended it is used all the time. Could I get away with a cheaper ie thicker standard filter.
Anyone used the standard thickness on this lens or the Hoya dual filter UV/Polarising.
Regards
For my Sigma 18-50 I purchased a Marumi Super DHG CPL, which I paid about £50 from an e-bay buyer (Hong Kong I think); great filter.Polariser: Because of the size required 77mm (thin and/or pro) this filter seem very expensive. I've read somewhere its recommended it is used all the time. Could I get away with a cheaper ie thicker standard filter.
Anyone used the standard thickness on this lens or the Hoya dual filter UV/Polarising.
Regards
However due to the effects of a CPL on an ultra wide, as described by sorted78, I decided not to purchase such an expensive CPL for the Sigma 10-20. What I got was one of these link
I highly recommend it, and must confess to being lazy in that I hardly take it off
Two recent sets taken using the 10-20 with the CPL attached
link
link
Regards
Adrian
Comment by bychan posted on Polarising filter Tamron 10-24mm at 25/08/2011 - 01:25
I eventually went with my initial thoughts, and purchased the Hama Rexton 150, see link
The good, it's built like a tank (metal rings holding the strap, rain cover, plenty of space for accessories), plenty of space for the K5 with lens mounted, plus 2 additional lenses.
The bad, I thought that the shoulder pad wasn't thick enough, and after a short period of time I developed a pain in my shoulder and neck. Suffice to say that it become unbearable, which was a shame in that it was a great bag.
Thankfully I got to return the bag, and I shall be changing it for a Tamrac model, link
Hopefully this will prove more comfortable for me.
Regards
Adrian
The good, it's built like a tank (metal rings holding the strap, rain cover, plenty of space for accessories), plenty of space for the K5 with lens mounted, plus 2 additional lenses.
The bad, I thought that the shoulder pad wasn't thick enough, and after a short period of time I developed a pain in my shoulder and neck. Suffice to say that it become unbearable, which was a shame in that it was a great bag.
Thankfully I got to return the bag, and I shall be changing it for a Tamrac model, link
Hopefully this will prove more comfortable for me.
Regards
Adrian
Comment by bychan posted on Lowepro Exchange Messenger Courier at 21/08/2011 - 19:24
It definitely looks like a fibre on the sensor. Invest in an Arctic Butterfly as the dust shake feature can't clean some things out as they will just come back eventually.
Adrian