September 23, 2014, 08:59:42 PM

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Messages - jdramirez

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256
It depends.  I control the light entirely on maybe 5% of my shots, the other 95% is a combination of low light and good light... but I've rather have low noise.  I rarely kick my iso above 3200... and I never kick it above 6400... So that is just me.

257
check out the EF 1200mm thread. Ebay has it at ~$70,000.00 now.

Yikes!  I would have a hard time spending that much on a car!!!  :o 

$70K on a piece of glass.  No problem getting that approved by the Central Committee.  Not hard at all.   :'(

This is idiotic nonsense, like the prices you see for art, or - postage stamps. Gee... http://www.bbc.com/news/world-us-canada-27890106

In the end it's a question of demand vs availability. Do we really need a 1200 mm lens nowadays? I'd say no.

I guess it really depends on how hot your neighbor is and how far her window is from yours.

258
Ok... let's say my pocketbook started suggesting some chapter options... like the 300mm f4 is... a little over a grand... 420mm at
F5.6...

And I save nearly nine grand....
Thoughts m

259
EOS-M / Re: Cheap 400mm advice
« on: July 02, 2014, 08:51:57 AM »
Back when I had a point and shoot, I put the eyepiece right next to the lens and I was surprised by the result.  It was a crappy photo of a cheerleader at the redskins game, but still.

260
EOS-M / Re: Cheap 400mm advice
« on: July 02, 2014, 07:09:15 AM »
How do you get the TC function to come up.  I didn't know that was possible... and even now that I see it... I don't know how to replicate it.

I'd suggest a Canon TC. As you rightfully pointed out, this means your new purchase is also good to go with your other Canon kit.

There doesn't appear to be much in it between the two when it comes to resolving detail:

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=404&Camera=736&Sample=0&FLI=4&API=1&LensComp=856&CameraComp=736&SampleComp=0&FLIComp=5&APIComp=1

But of course the 70-200 and 1.4 combo has more reach, and it gives you options with your 5D2 - 70-200/TC and 135/TC, whereas for you, buying the EF-S lens is a one horse trick.

The 2x TC will potentially resolve more detail than the 1.4x and cropping, but the lack of AF on either of your bodies with the 70-200 and the images the 135 would produce make it largely worth ignoring for any purposes other than shooting distance objects using the M with manual focusing.

Thanks! I never knew you could use teleconvertors for TDPs lens image quality comparison tool! Yeah theres not much difference, though the EF-S seemed to be slightly better in the centre. A little PP sharpening should sort that out. Yeah I think I already answered my own question but still good to hear it from someone else!

So you don't recommend the Kenko adaptor? Any reason for that? I feel like the Canon is over priced a bit. And for my purposes v2 should suffice right?

261
Canon General / Re: DOF and Sensor Size
« on: July 01, 2014, 10:02:41 PM »
I had a lot of trouble wrapping my head around this too. I did read somewhere this explanation that made sense.
Cameras with smaller sensors have a larger DOF to a full frame because it is dictated by ACTUAL focal length, NOT EQUIVALENT. As an example on a compact @ F2.8 it's roughly equivalent to a full frame camera @ F11
Aye... that be true matey... but at equal distances from ye subject, thar full frame hast mo dof.

262
Software & Accessories / Re: Tripod centre column - yes or no
« on: July 01, 2014, 06:03:06 PM »
Or is the sand bag adding more normal force and consequently greater inertia... which as we know... matter at rest tends to stay at rest unless...

Crap...

263
Software & Accessories / Re: Tripod centre column - yes or no
« on: July 01, 2014, 05:54:45 PM »
Raising the center column *up* adversely affects stability.  I think that is pretty self-evident.

But what about lowering the center column *down*?  Down as extending below and in-between the legs of the tripod?  Is that equally as unstable as raising it.  Is there any stability concerns with hanging the camera below the lowered center column?

I will often flip the center column when I am taking pictures of low flowers.  Is that a wise thing for me to do?

Wouldn't that lower the center of gravity of the entire apparatus... and much like hanging a sand bag on a hook on the column... it should have the same effect of adding stability.  I say go for it.

264
Canon General / Re: DOF and Sensor Size
« on: July 01, 2014, 05:33:34 PM »
I want to stay far away from this one... it just give me a headache. 

I know the answer is yes sensor size does affect DOF... and not just when you are framing the image similarly... and I know magnification has something to do with the whole DOF issue... but by george... that is about where my pretty smart brain take a rain check.

265
Generally I shoot sports.  I like the movie Big Year, but I don't really care much about birds. 

The 70-200 has been leaving me wanting lately... which is the reason for the gas.

And I pulled back on the throttle for the 400mm f2.8L... I looked at that price tag again and it was like cold water in the face...

JD...I have the 300 2.8 is and like you,  mainly shoot sports.....the addition of this lens is huge for field sports and night games.   It's my money maker.

Look what I see..... ;D ::)

http://www.ebay.com/itm/Canon-EF-300mm-f-2-8-L-IS-USM-Lens-with-Hood-Caps-Case-/121364494388?pt=Camera_Lenses&hash=item1c41e33834

While I have ya'll ear... is there an appreciable difference between the original and mkii version of the 300mm f/2.8?

266
+1

The money I started saving when I quit playing golf has quickly been eaten up by my GAS

I liked golf... but I wan't good at it.  On my best day I would be a bogey golfer... and on my worst day I didn't leave the bar between the 9th and 10th hole.  So... this is better.

267
Pricewatch Deals / Re: Canon EF 1200mm f/5.6L USM For Sale
« on: July 01, 2014, 05:23:46 PM »
I've never heard of the 1200mm... but it sounds really cool.  I'd almost lean toward getting a 600mm and putting a 2x tc on it... sure it would be f8... but you would want to stop down to avoid any vingetting anyway. :)

268
Generally I shoot sports.  I like the movie Big Year, but I don't really care much about birds. 

The 70-200 has been leaving me wanting lately... which is the reason for the gas.

And I pulled back on the throttle for the 400mm f2.8L... I looked at that price tag again and it was like cold water in the face...

269
Have you handled a larger great white?  I'd suggest that you do and decide if you want a hand holdable or not.

The 400 is ii us m and 600 ii is usm  are for me marginally hand hold able (and thus less good for difficult birds in flight).  I have no experience with the 200-400.

The 300is ii usm and to a lesser degree the 500 ii usm are hand holdable and the 300 for sure takes extenders really well.  The MTF would indicate that the 500 does so very well as well.

So Id go for the 300 or the 500 unless you are in very good shape in which case any of the great white sharks would work for you.  If I were to buy a 500 I'd consider camera canada as they have a deal on the 500....

Sometime soon I'm going to the b&h super store in nyc, so I'll see how they feel.

270
Ok... while I'm walking down this road... 400mm or 300mm f2.8L?  I have the 70-200 f2.8L is mkii at present.  I would need to upgrade my 1.4x mkii to the mkiii and get a 2x mkiii. 

That would give me the following:

70-200mm. @f2.8.
400mm @ f2.8
90-280mm @ f4
560mm @ f4
140-400mm @ f5.6
800mm @ f5.6

Mmmm... that sounds delicious.

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