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Archive 2013 · Anyone up/in for a "Canon Spring 2013" Thread???
  
 
John_T
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p.18 #1 · p.18 #1 · Anyone up/in for a "Canon Spring 2013" Thread???


PetKal wrote:
John, I've never had any problems with B+W UV MRC filter on 100-400. However, this CP is very different....it altered/obliterated the image quality of that good lens.
Now, on my B+W CP it says "F-Pro", but not "MCR". However, I doubt very much that would make any difference because that CP has worked very well on 24-70L, 16-35L MkI and 70-200 f/2.8 non-IS.


Peter, I don't know anything, that's obvious, and I don't know of any documentation thereof, however I surmise...

- That it is impossible that the 100-400L has been produced identically for fifteen years. I surmise there have been improvements and changes on the QT, including optics, coatings and coating methods.

- That CP filters have three important elements, Schot glass, the CP filter mask and coatings in many variations of composition and execution from brand/model to brand/model. That batch-wise or otherwise, filter mask execution and coatings may vary substantially even within brand/models.

- That megapixels of sites on sensors vary in design, pattern, construction, filters, coatings, etc. and then processing in any variation you wish or don't wish.

- That those ray things emitted whimsically by the Sun God enter our atmosphere through water molecules, dust and pollution in infinite variations of colour, diffusion, diffraction and blockage.

Should you extrapolate all the variables, you have pijillions of opportunities for conflicts, compromises and/or confluences. If you add in the dolt and his vagaries on the receiving end, it is a miracle we get what we get.

That all said, I think it all converges in the shadows where the signals are weakest and most difficult to sort out and display. I think adding a filter to the mix is most likely to upset an already tipsy apple cart, perhaps exponentially. I am right now about to replace my 6 or 7 year-old Eizo CG241s with the newest CG276s primarily for better sight and insight into color transitions and shadows and hopefully clear up some vagaries as to what is causing what and what is possible to do about it.




Apr 16, 2013 at 10:22 AM
PetKal
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p.18 #2 · p.18 #2 · Anyone up/in for a "Canon Spring 2013" Thread???


John, I fully agree, there are very many factors and variables at play, it's hard to deduce a fast and firm general rule regarding the interaction of CPs with long lenses, particularly a fussy one of the 100-400 type.

I did this little trial with a view of possibly ordering Canon's drop-in CP for the long lenses, however, now I am not ready to plonk $300 on that yet.



Apr 16, 2013 at 11:02 AM
Wrei
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p.18 #3 · p.18 #3 · Anyone up/in for a "Canon Spring 2013" Thread???


This signals the end of spring in Central Texas and beginning of summer; the first Indian Blanket is blooming, our early summer flower.








Apr 16, 2013 at 01:10 PM
PetKal
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p.18 #4 · p.18 #4 · Anyone up/in for a "Canon Spring 2013" Thread???


Lottsa Wood pijun pictures on all kinds of nature/wildlife/bird fora these days. I guess it's a spring thing.

Well, we should not fall behind in this thread, since I've got a few.

Handheld 1DX + 600 II + 1.4xTC.

Edited on Apr 19, 2013 at 03:00 AM · View previous versions



Apr 16, 2013 at 02:09 PM
mark fadely
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p.18 #5 · p.18 #5 · Anyone up/in for a "Canon Spring 2013" Thread???


Great Wood Duck pics Peter. The detail on some of these is incredible. Especially the one with the 600II and 1.4x tc.


Apr 16, 2013 at 03:33 PM
PetKal
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p.18 #6 · p.18 #6 · Anyone up/in for a "Canon Spring 2013" Thread???


Thank you, Mark. The MkII lenses work very well with the MkIII TCs. However, #2 was a proximity shot, about 20ft distant bird, if I recall right.
Although they were all shot handheld, I think the sharpness is sufficient, and not much could be gained by having those lenses on a tripod, as long as shutter speed values are decent.



Apr 16, 2013 at 03:42 PM
ruhikant
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p.18 #7 · p.18 #7 · Anyone up/in for a "Canon Spring 2013" Thread???


Northern Shoveler: 5D3 at 700mm.













Apr 16, 2013 at 07:27 PM
burningheart
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p.18 #8 · p.18 #8 · Anyone up/in for a "Canon Spring 2013" Thread???


Spring What Spring

Sunday before last 1DX 70-200 MKII







Last Saturday went indoors it started to snow while indoors 1DX 200L 1.8







Sunday went back outdoors 1DX 70-200 MKII












Apr 16, 2013 at 07:59 PM
mitesh
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p.18 #9 · p.18 #9 · Anyone up/in for a "Canon Spring 2013" Thread???


Wow, I've really missed some terrific images of flora and fauna in the last couple of days! Great work by all who have posted... really enjoying the various flowers!

Here is today's submission from me. Wish I could give a more pleasing background...












Apr 16, 2013 at 08:48 PM
burningheart
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p.18 #10 · p.18 #10 · Anyone up/in for a "Canon Spring 2013" Thread???


Nice Mitesh don't worry about the background it is the same color I see on the ground - White.


Apr 16, 2013 at 09:22 PM
 

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mitesh
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p.18 #11 · p.18 #11 · Anyone up/in for a "Canon Spring 2013" Thread???


Thanks, Robert, and I hope you get to see some more vivid colors soon


Apr 16, 2013 at 09:40 PM
Tenn.Jer
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p.18 #12 · p.18 #12 · Anyone up/in for a "Canon Spring 2013" Thread???


Beautiful wood ducks, Peter, as always - my "proximity" shots of those are usually about 50 meters; pretty shy birds...

Love the osprey, the northern shoveler (never seen even a picture of one of those in the air; sort of gooney bird-looking, aren't they )...

Pretty vivid purple jersey on the skater, there, but I can sympathize with a longing for spring...

Here are more local wildflowers, all with 100L macro...
Jerry




Fire Pink

  Canon EOS 5D Mark III    EF100mm f/2.8L Macro IS USM lens    100mm    f/11.0    1/3s    200 ISO    +0.3 EV  






Large White Trillium

  Canon EOS 5D Mark III    EF100mm f/2.8L Macro IS USM lens    100mm    f/4.5    1/160s    200 ISO    +0.3 EV  




Apr 16, 2013 at 11:12 PM
tbartick
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p.18 #13 · p.18 #13 · Anyone up/in for a "Canon Spring 2013" Thread???


Hi all...this is Terry Bartick

Can someone please tell me how to UN-hide a member of Fredmiranda.

On my phone, so small...I accidently hit the hide button. I believe on "Jefferson"...not real sure I did hide someone.

Thank you in advance.



Apr 17, 2013 at 12:17 AM
tbartick
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p.18 #14 · p.18 #14 · Anyone up/in for a "Canon Spring 2013" Thread???


Jerry-love the wood shots of the flowers!! Your colors are just so contrasty!!! Keep up the walks in the woods!

Mitesh-Osprey are captured so wonderful...love them! Great job...

Here are 2 from today...don't look to close as it was breezy out today!







5DIII-85mm F2.2 tripod-10 photos(apox) plus tube(12mm)







Shot the same as above Iris- using 1.8

Thanks...terry



Apr 17, 2013 at 12:23 AM
Ernie Aubert
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p.18 #15 · p.18 #15 · Anyone up/in for a "Canon Spring 2013" Thread???


There might be some other way, but the one way I know is that when you see a hidden post, there will be some buttons giving you the option to show the hidden post and to unhide the member... the latter may not show unless you first show the hidden post - I don't remember that particular point.


Apr 17, 2013 at 12:36 AM
tbartick
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p.18 #16 · p.18 #16 · Anyone up/in for a "Canon Spring 2013" Thread???


Thank you, Ernie !


Apr 17, 2013 at 12:37 AM
kdrk888
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p.18 #17 · p.18 #17 · Anyone up/in for a "Canon Spring 2013" Thread???


A few from few days ago. Thanks for looking. Douglas

[url=http://www.flickr.com/photos/douglasliu/8650532118/][/url]

[url=http://www.flickr.com/photos/douglasliu/8650531534/][/url]

[url=http://www.flickr.com/photos/douglasliu/8650530876/][/url]

[url=http://www.flickr.com/photos/douglasliu/8636484775/][/url]



Apr 17, 2013 at 01:17 AM
PetKal
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p.18 #18 · p.18 #18 · Anyone up/in for a "Canon Spring 2013" Thread???


tbartick wrote:
On my phone, so small...I accidently hit the hide button. I believe on "Jefferson"...not real sure .







Apr 17, 2013 at 01:42 AM
Jefferson
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p.18 #19 · p.18 #19 · Anyone up/in for a "Canon Spring 2013" Thread???


Peter, I see your new avitar has shades... cool... must have something to do with your new Pipe...


Apr 17, 2013 at 02:42 AM
PetKal
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p.18 #20 · p.18 #20 · Anyone up/in for a "Canon Spring 2013" Thread???


Jefferson wrote:
Peter, I see your new avitar has shades... cool... must have something to do with your new Pipe...


Not quite. See this.



Apr 17, 2013 at 03:12 AM
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