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Topics - TommyLee

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1
Third Party Manufacturers / sigma 120-300 new and old
« on: May 29, 2013, 10:26:26 AM »
what is the difference between this lens
http://www.bhphotovideo.com/bnh/controller/home?O=&sku=755329&is=USA&Q=&A=details
$2500

and this lens
http://www.bhphotovideo.com/bnh/controller/home?O=&sku=909811&is=REG&A=details&Q=
$3500

Lenstip liked the new one....

it seems that one could confuse these two..
except for the price difference

what has changed?
did I miss something ?

I do notice the different looking BUILD

thanks for help here

TOM

2
Lenses / Canon CN-E 14mm T3.1 L F Cinema Prime Lens (EF Mount)
« on: May 21, 2013, 07:33:14 PM »
Canon CN-E 14mm T3.1 L F Cinema Prime Lens (EF Mount)

is this - inside/the elements -  the same as the14L II?

is it autofocus?....

///////////

sorry that I dont fully understand the video lens series....  and features

thanks for helping me here
TOM

3
I have dell 3011 monitor ...fairly accurate...but uncalibrated to print etc
with canon 5d3 shots in RAW edited in LR 4/5(beta) ...

LR
process:  2012
profile :  standard
always have used the sRGB popular setting ...not the widder Adobe RGB
for some reason LATELY my jpg result is warmer ....more reds than the edit screen...

edit screen looks pretty close to what I see
I never print - I just want fairly close colors... to what I SAW when I shot,
what I see in edit screen....... and not some new 'reddish' output... on jpg

and for sure what I see needs to be what I get

I dont need absolute color accuracy ...for printing for example...
something is 'shifted' lately.....??

I noticed this in the last few weeks..
so I might have some setting in LR that I dont understand..

but I have not found any reason YET

if you have a clue for me
I would be grateful

I dont need perfect color accuracy..
i just post occasional pics to web...

but LATELY they got redder/warmer..
can you help


RAW EDIT before (LR 5 screen capture)
and then after jpg output ..as examples
flesh tones show the effect best - IMO

thanks again for your comments...
TOM

4
Lenses / 24-70 II tested at SLR gear
« on: December 05, 2012, 11:42:23 AM »
I looked at SLR gear site....where they tested the 24-70 II ...
http://slrgear.com/reviews/showproduct.php/product/1494/cat/11

I collected the graphs and compared with ....
 the 24L, 35L 50L ...and for lack of something better ...the 70mm position of the 70-200 II.

looking at chromatics also....

seems to do fairly well....
(MAYBE the 35L is ready for a replacement ....with these chromatics and with Sigma release - IMO
But I do love my 35L)

would liked to have seen better performance at 70mm..   and especially I.S.  ....
(I guess we are spoiled by the recent Canon lens releases)

but for this difficult range...it compares pretty well......to the overall quality of the 70-200 II
(well ...really..... very little compares to the 70-200 II)

thought it would be of interest to know that this test is up....

TOM

UPDATE note:

the 24mm L prime and 35mm L prime  sharpness graphs are swapped ... (24mm is under the 35mm  zoom column)

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