March 02, 2015, 06:40:02 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - drjlo

Pages: 1 ... 21 22 [23] 24 25 ... 46
Lenses / Re: EF 100mm f2,8 L IS Macro... is IS worth it?
« on: June 21, 2013, 12:44:30 PM »
At macro distances, the movement is primarily forward and back - IS doesn't help in that case. Faster shutter speed [even with higher ISO] or flash is a better answer.

Really?  At macro distances and hand-held,  if I turn off IS and look throught the VF, I see all kinds of shifting including horizontala and rotational, not just back and forth.  IS certainly is not AS useful at macro distances but is still useful for me for hand-held macro shots, making the difference between getting the shot or not on my 100L..

When I had the 16-35 II, I never dared put it through iso 102,4K, but I find DPP's noise reduction is not as good as a good dedicated program like Noisware, which I used to redo the image below with just a subtle additional noise reduction while trying to preserve detail.  Obviously, working with original RAW would have been better..  Hope you don't mind.

isotestNW by drjlo1, on Flickr

Lenses / Re: New Wide Angles Lenses in 2013 [CR2]
« on: June 20, 2013, 09:26:04 PM »
I can see room for all three -- the 16-50 f/4, 16-35 III, and 14-24

16-50 range appeals to me as better full frame walkaround range than 24-70; but I am afraid increasing the range will likely compromise distortion figures and corner sharpness compared to wide angles with less range, etc 14-22, 16-35.  16-35 II is already not all that great in corners wide open at 35 mm end. 

If Canon manages to pull off a 16-50 with good sharpness across the ranges, especially with a good 50 mm portrait end, I will likely buy that over 14-24..

Testing this 24-70 II some more, I am somewhat dismayed by what I find at close distance, wide open, at wide 24mm end.  Compared to where live view focusing stops, even after AFMA, the phase detect AF is hit-and-miss, even on tripod.  Often the initial half-press of shutter will be quite a bit off, then a repeat half-press or two will get it to where live view stops.  Where it stops also seems to differ based on whether I'm focuing from infinity or MFD side as well as distance from object.  At other times, it focuses right at first half-press.  This doesn't seem to happen at the 70mm end.  Phase detect couldn't be this bad relative to live view in general, could it?  Guess will see what Canon service will say/do. 

EOS Bodies - For Stills / Re: 1D X Product Advisory
« on: June 19, 2013, 10:37:22 AM »
Man, are CaNikon unable to produce a trouble-free product, even at these price levels?  This would be a pain in the behind  ???

Lenses / Re: Canon EF 28mm F/2.8 IS USM $399 from Adorama !!
« on: June 19, 2013, 10:34:36 AM »
Anyway, I'm extremely grateful to the person who alerted us to this short-lived bargain.

You're welcome and have fun with it.  But now I have non-buyer's remorse  ;D

Lenses / Re: Canon EF 28mm F/2.8 IS USM $399 from Adorama !!
« on: June 17, 2013, 10:10:21 PM »
Back up to $649! Damn. (I suppose that's a good thing in a way though)

Yup, I don't think I could have resisted more than another few hours  ;D

I just talked to Canon CPS, and they are implying to me that their "unofficial" guideline for acceptable AFMA is around 10.  That seems like a lot since the difference between 0 and -9 is quite noticeable to my eyes.
They suggested that if both lens and body are "off" in same direction, it may end up too much and recommened I drop off both the lens and body to be calibrated together, so I guess I'll do that when I have time to make the drive over there..

My copy of 24-70 f/2.8 II needs -9 at wide end and 0 at tele end on my 5D III.  My Canon 70-200 f/2.8 II needs 0 at either end, and my 100L also needs 0.  Some of my fast primes including 35L, 50L, 85L II range between -1 and -3. 

A brand new Canon 17-40 f/4L I just borrowed needed -6 at wide and 0 at tele. 

-9 seems a tad too much for a $2100 lens, so I'm just wondering what 24-70 f/2.8 II owners have experienced with AFMA (and 5D III)?  Is it worth sending in the lens to Canon while still under warranty for calibration?

Is my copy of 5D III partly at fault here, as the body seems to need Minus AFMA on lenses, never positive.  The body is out of warranty, but should I send in both the 24-70 II and body to Canon for calibration together (does Canon even calibrate a specific lens+body combo?). 

Any help would be appreciated. 

Lenses / Re: Canon EF 28mm F/2.8 IS USM $399 from Adorama !!
« on: June 17, 2013, 04:09:15 PM »
M..U..S..T..   R E S I S T..

Lenses / Canon EF 28mm F/2.8 IS USM $399 from Adorama !!
« on: June 17, 2013, 02:50:06 PM »
These things usually go for $600+, so I would buy in a heartbeat if I hadn't just bought the 24-70 II  :'(

Lenses / Re: Canon 100mm macro L or Zeiss 50mm makro?
« on: June 16, 2013, 10:00:28 PM »
But I think they are pretty different lenses.

That may be the understatement of the week, mainly due to the fact Zeiss only has max. magnification of 1:2 where as Canon is a true 1:1 magnification macro lens.  The lack of AF and IS on the Zeiss is the next large difference, and the fact Canon 100L actually can be bough quite a bit cheaper is a consideration. 

If one wants mainly a "walkaround" normal lens and can manual-focus quick enough, the Zeiss would be a good choice, with the understanding you are not going to get 1:1 magnification. 

Pricewatch Deals / Re: Sigma 18-35 f/1.8 DC Available for Preorder
« on: June 14, 2013, 12:17:18 PM »

Any of you surprised by the $799 figure?  The chatter I've seen on other announcement pages (photo rumors, Petapixel, etc.) has been very positive re: the price.

I can imagine that if Canon had come up with this first-of-kind lens, they would have priced it at $1800 easily  :'(   

I don't want to invest further in aps-c, but if Sigma makes EF-M version of this lens, I would probably buy the lens and Canon EOS-M (hopefully next version) just for this lens, skipping the EF-M adapter.   

85L II. 

I'm looking at my lens collection including the likes of 70-200 f/2.8 II, 35L, 100L, 135L, 17-40L, but 85L II plus 5D II (III in my case) produces the most special images. 

EOS-M / Re: EF-M 11-22mm f/4-5.6 IS STM Announcement Soon? [CR2]
« on: June 03, 2013, 12:26:24 PM »
Constant F4 would have my attention  :'(

Pages: 1 ... 21 22 [23] 24 25 ... 46