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Forum: Troubleshooting and Beginner Help 02-08-2010, 06:37 PM  
Filter or no filter ?
Posted By EdB
Replies: 26
Views: 3,246
Thank you all, I appreciate your responses
Ed
Forum: Troubleshooting and Beginner Help 02-07-2010, 08:35 AM  
Filter or no filter ?
Posted By EdB
Replies: 26
Views: 3,246
It is my common practice to have a good UV filter (mostly B+W, and a couple of Hoya) mounted on my lenses.

To me, the big plus is lens protection and sparing the lens from repeated dust cleaning

However :
1) will this contribute to some image refractions/chromatic aberration/other problems (?...) especially on the picture edges ?

2) do you see a difference in image quality/definition with or without filter ? What focal lenses would be more deteriorated (if true) ?

3) Given the enhanced glass coating on the DA* lenses, if no filter used, is dust accumulation a problem ?

What is your experience and opinion about this ?

Ed
Forum: Pentax SLR Lens Discussion 02-01-2010, 06:17 PM  
Teleconverter for DA*300mmF4 ED IF HSM
Posted By EdB
Replies: 15
Views: 3,947
Thank you guys for the info.
Ed
Forum: Pentax SLR Lens Discussion 01-31-2010, 06:36 AM  
Teleconverter for DA*300mmF4 ED IF HSM
Posted By EdB
Replies: 15
Views: 3,947
Thank you Lee
I will also review the old threads
Ed
Forum: Pentax SLR Lens Discussion 01-30-2010, 09:00 PM  
Teleconverter for DA*300mmF4 ED IF HSM
Posted By EdB
Replies: 15
Views: 3,947
I just bought a DA*300mmF4 ED IF SDM and I am contemplating buying a teleconverter, either a 1.4X or a 2.0X.

I have a K20D

What high quality 1.4X TC's are available ? What functions do they maintain or not maintain on my K20D ?

Same questions for the 2X TC.

Thanks for your help

Ed
Forum: Welcomes and Introductions 01-11-2010, 07:55 PM  
New member from Montreal, Canada
Posted By EdB
Replies: 6
Views: 782
Iris,
Thanks for the invitation. First, I have to learn the picture uploading methods, as I could not upload from my hard drive. I will participate in a near future.
Rgds
Ed
Forum: Welcomes and Introductions 01-10-2010, 02:17 PM  
New member from Montreal, Canada
Posted By EdB
Replies: 6
Views: 782
Hi all,

My name is Ed (alias EdB). I just joined the Pentax forum.

I have been a Pentax user for quite a while (since the K2 days. Today I am a K20D user (added a zero to my camera model...), and I do mostly landscape, urban and a little macro photography (used to do a lot more, time permitting...).

Looking forward to participating in a few interesting discussions, and probably posting a few photographs and get your comments.

Regards

EdB
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