Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-22-2015, 01:28 PM   #1
Junior Member




Join Date: Apr 2015
Location: High Wycombe, UK
Posts: 35
HELP... Is this normal or is lens broken?

Just went out to snap the crescent moon with my HD DA 55-300mm WR lens and noticed some glare reflection. I did notice this the other day but put it down to being close to a streetlight. This time was in the garden shaded from any direct bright lights. To test also took a close up of a street light and the same result


Is this a 'feature' of this lens or .... have I bought a pup?

Attached Images
View Picture EXIF
PENTAX K-50  Photo 

Last edited by delboy65; 04-28-2015 at 04:34 AM.
04-22-2015, 01:37 PM   #2
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 40,958
QuoteOriginally posted by delboy65 Quote
Just went out to snap the crescent moon with my HD DA 55-300mm WR lens and noticed some glare reflection. I did notice this the other day but put it down to being close to a streetlight. This time was in the garden shaded from any direct bright lights. To test also took a close up of a street light and the same result


Is this a 'feature' of this lens or .... have I bought a pup?
Are you using a filter?

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

04-22-2015, 01:40 PM   #3
Site Supporter
Stavri's Avatar

Join Date: Aug 2014
Location: at a Bean & Leaf
Photos: Albums
Posts: 1,633
Having a filter attached might be the source of the problem...
04-22-2015, 01:49 PM   #4
Junior Member




Join Date: Apr 2015
Location: High Wycombe, UK
Posts: 35
Original Poster
Yes, i do have a uv filter attached 😕

04-22-2015, 02:00 PM   #5
Junior Member




Join Date: Apr 2012
Location: Des Moines, IA
Posts: 36
Ha! this is very interesting, because I've had the exact same problem before, but didn't wonder what it was, and attributed it to some reflection effect of the light of the moon. No filter then, OK! Thanks, guys!
04-22-2015, 02:26 PM - 1 Like   #6
Loyal Site Supporter
UncleVanya's Avatar

Join Date: Jul 2014
Photos: Gallery | Albums
Posts: 9,513
QuoteOriginally posted by delboy65 Quote
Yes, i do have a uv filter attached ��
UV Filters are really not needed these days. I think if you dig around in threads you will find other problems introduced by them. I have seen telephoto shots that were dramatically improved by the removal of these "protective" filters. If you want front element protection use a good hood. If that isn't sufficient - get insurance.

I'm glad someone else identified this problem as I would not have known what to suggest at first despite having seen the problem myself up close and personal once or twice. For those of us that used film it was just normal practice and a hard habit to break.
04-22-2015, 02:30 PM - 1 Like   #7
Site Supporter




Join Date: Sep 2012
Location: Raleigh, NC, USA
Posts: 755
I took the no lens cover thread to heart and have never been more happy.
04-22-2015, 04:19 PM   #8
Site Supporter
Ex Finn.'s Avatar

Join Date: Nov 2007
Location: Southern Maryland.
Photos: Gallery | Albums
Posts: 6,060
It could also be a reflection from the sensor to the rear element of the lens.

04-22-2015, 09:02 PM - 1 Like   #9
Veteran Member
sterretje's Avatar

Join Date: Dec 2008
Location: Roodepoort, South Africa
Photos: Gallery | Albums
Posts: 3,534
QuoteOriginally posted by delboy65 Quote
Yes, i do have a uv filter attached 😕
Remove it and check again. I had exactly the same issue with the non-WR version of this lens on a K10D and have not been using filters since that experience. I now will only use protective filters in a blistering sandstorm.
04-23-2015, 08:54 PM   #10
Junior Member




Join Date: Apr 2015
Location: High Wycombe, UK
Posts: 35
Original Poster
OMFG, would never have believed it but removed the uv filter and... no glare when pointed at the moon again

One truly does live and learn
04-23-2015, 09:27 PM   #11
Veteran Member
crewl1's Avatar

Join Date: Jul 2010
Location: Los Angeles, CA
Photos: Gallery | Albums
Posts: 9,795
Use the hood, ditch the filter.
I believe if Pentax engineers thought the lens would work better with an additional piece of glass, it would have been part of the design.
04-24-2015, 07:11 AM   #12
csa
Loyal Site Supporter
csa's Avatar

Join Date: Aug 2014
Location: Montana mountains
Posts: 8,180
QuoteOriginally posted by crewl1 Quote
Use the hood, ditch the filter.
Agreed! The hood offers great protection for the lens, with few exceptions (dust storms, etc.). I never have a filter on any of my lenses, with the exception if I'm using a polarizer.
04-24-2015, 02:16 PM   #13
amateur dirt farmer...
pepperberry farm's Avatar

Join Date: Dec 2014
Location: probably out in a field somewhere...
Photos: Gallery | Albums
Posts: 5,834
QuoteOriginally posted by delboy65 Quote
OMFG, would never have believed it but removed the uv filter and... no glare when pointed at the moon again

One truly does live and learn

same thing happened to me while shooting sunsets - kept getting excessive reflections/ghosts.... did some research/reading on this forum and a couple of others and pulled all (yes, all) filters off of my lenses and lost all the ghosts....

here's one of the articles that made me second-guess the necessity of filters:

Should You Use a UV Filter on Your Lens?: Digital Photography Review
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, close, lens, pentax help, photography, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is this a bad service center or is it just me !? I need help! Dexxx General Photography 11 11-20-2014 04:38 PM
Is this a setting issue or is my camera broken? Newtophotos Pentax DSLR Discussion 10 01-13-2014 08:39 AM
Is this normal behavior for SDM lens everydaylife Pentax SLR Lens Discussion 8 07-01-2013 06:18 PM
Is this lens or camera broken? (sample pics) heartx3jess Troubleshooting and Beginner Help 12 10-28-2012 02:12 AM
HELP! Is this normal? PNTXFTW12 Pentax SLR Lens Discussion 8 12-16-2008 09:13 PM



All times are GMT -7. The time now is 12:47 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top