Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies. Read More.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Canon Cameras, Lenses & Accessories Canon Accessories 
Thread started 06 Apr 2011 (Wednesday) 19:32
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

STICKY: -= THE FILTER FAQ =-

 
Jon
Cream of the Crop
Avatar
69,628 posts
Likes: 218
Joined Jun 2004
Location: Bethesda, MD USA
     
Apr 06, 2011 19:32 |  #1

FILTER FAQ

-= PROTECTIVE FILTERS FAQ =-
Recommendations here on filter quality and multicoating will apply to all other filter types as well.

-=What is the effect of a Polarizer Filter=-
and why it can't be replicated in PhotoShop

-=Beginner's Guide to Neutral Density Filters=-
Including solid and graduated ND filters

-=GND Buyers FAQ=-


Jon
----------
Cocker Spaniels
Maryland and Virginia activities
Image Posting Rules and Image Posting FAQ
Report SPAM, Don't Answer It! (link)
PERSONAL MESSAGING REGARDING SELLING OR BUYING ITEMS WITH MEMBERS WHO HAVE NO POSTS IN FORUMS AND/OR WHO YOU DO NOT KNOW FROM FORUMS IS HEREBY DECLARED STRICTLY STUPID AND YOU WILL GET BURNED.
PAYPAL GIFT NO LONGER ALLOWED HERE

  
  LOG IN TO REPLY
Jon
THREAD ­ STARTER
Cream of the Crop
Avatar
69,628 posts
Likes: 218
Joined Jun 2004
Location: Bethesda, MD USA
     
Mar 03, 2012 16:33 |  #2

Because it's not spelled out in any of the above links:
Neutral density filters are variously reported any of three ways.
First, there's the filter factor - a filter may be 2x, 4x, 8x, . . . which is how much you need to increase the exposure time over when you're not using a filter.
Then there's the number of stops you'll need to increase the exposure - 1, 2, 3 . . . stops
Then there's the "log density" value 0.3, 0.6, 0.9 . . .
Different vendors will use their own preferred one of the above. They all work out to the same thing in the end

  • 2x, 1 stop and 0.3 all mean the same
  • 4x, 2 stops and 0.6 again all mean the same
  • 8x, 3 stops and 0.9 all mean the same
  • and at the high end, 1024x, 10 stop and 3.0 all work out to the same.

Jon
----------
Cocker Spaniels
Maryland and Virginia activities
Image Posting Rules and Image Posting FAQ
Report SPAM, Don't Answer It! (link)
PERSONAL MESSAGING REGARDING SELLING OR BUYING ITEMS WITH MEMBERS WHO HAVE NO POSTS IN FORUMS AND/OR WHO YOU DO NOT KNOW FROM FORUMS IS HEREBY DECLARED STRICTLY STUPID AND YOU WILL GET BURNED.
PAYPAL GIFT NO LONGER ALLOWED HERE

  
  LOG IN TO REPLY
Stuntman ­ Mike
Senior Member
Avatar
268 posts
Joined Jun 2010
Location: Hiawassee, GA, USA
     
Dec 28, 2013 07:55 as a reply to  @ Jon's post |  #3

Wish I had read this before ordering an 85mm filter set. :oops: *Formatt was kind enough to change the order to 100mm, just found out!*

I figured 85mm > my 77mm lenses but didn't consider the filter holder extending into the frame at 17mm on a FF sensor.

Ordered the 85mm Colby Brown Signature set to stay welded to my 17-40mm, realized that I needed the 100mm set at the 17mm end.

https://www.formatt-hitech.com …pe---Colby-Brown~148.html (external link)

Informative thread!


EOS M3 | 5DmkII | 60D | 14mm f/2.8 | 17-40mmf/4 L | 17-55mm f/2.8 | Σ 35mm f/1.4 | 40mm f/2.8 | 50mm f/1.4 | 70-200 f/4 L | 70-200 f/2.8 L II | 70-300mm f/4-5.6 | 135 f/2 L | 2X EF III
Flickr (external link) | Gear

  
  LOG IN TO REPLY
Augphoto
Member
194 posts
Likes: 1
Joined May 2010
Location: South Carolina
     
Feb 21, 2014 20:28 |  #4

Hello to all.

I hope this subject hasn't been covered before.

I am ecstatic because I have finally got the Big Stopper coming my way!!!

I have yet to order the foundation kit, however, or the adapter ring(s). Which brings me to my question. All of my lenses but two take a 77mm filter. The ones which do not are the 70-200 which takes a 67mm and my 100 macro which takes a 58mm filter.

So, I was going to purchase a 77mm adapter (of course) and a 67mm adapter for the 70-200, then maybe a 58mm for my macro. Whew, this is an expensive game we're in isn't it ?

Then I got to thinking. Is there ever a need for filters (including nd grads, solid nd filters, or the Big Stopper) on either the 100 macro or the 70-200 zoom. I obviously want them for my wider lenses but does anyone find a use for them on longer lenses as well ?

Now, if I may bother you with a secondary question or questions. I see that Lee sells an expensive polarizer for the front of the foundation kit. I like polarizers but I've read that some won't use them with wide-angles anyway because they make the sky uneven. Do any of you experience this issue? Do you even both with a polarizer when using grads, etc ? If you do use them, do any of you use a polarizer other than the Lee on the front of the foundation kit ?

I ask this later series of questions because I already own a B + W 77 MM (MC) Kaesemann Circular Polarizing Filter which I love and paid good money for. Would I not be able to use this with the Lee System ? It is only a 77mm filter thread after all. Is there no way to make it work ? Or, again, would it even pay to use one ?

In case it matters, I am using Canon equipment. Specifically the 7D but do plan on purchasing a full frame body in the future. Currently my widest lens is a 17-40.

Thanks, for bearing with me on my long post and I thank everyone in advance for responding. As you can see, I am not well-versed in this filter stuff so, if anyone has any other tips or knowledge on this system or things I should know, please chime in.


Cameras - 7D, 5D MkIII Lenses - 100mm f2.8L Macro IS USM, 100-400 f4.5-5.6L IS USM, 17-40 f/4L USM, 24-70 f/2.8L USM, 24-105 f/4L IS USM 70-200 f/4L IS USM, also a Canon Extender EF 1.4 III
Flickr (external link) - Facebook (external link) - Twitter (external link) -

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

64,608 views & 0 likes for this thread
-= THE FILTER FAQ =-
FORUMS Canon Cameras, Lenses & Accessories Canon Accessories 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.0forum software
version 2.0 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is mason.snipes
614 guests, 392 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.