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Messages - Random Orbits

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376
Pricewatch Deals / Re: Grab a Pancake! $129 at B&H Photo
« on: January 03, 2014, 07:01:37 PM »
Wait!  Does this lens come with the pinch-cap??  that's actually really important.. lol

Mine didn't come up the pinch cap... :(

Mine came with a pinch cap.

377
EOS-M / Re: EOS M: Patent-16-120mm-f3-5-5-6-is-stm
« on: January 02, 2014, 10:32:22 AM »
Interesting about the new lens patents.  I bought the EOS M pretty much hoping for the wide angle zoom.  Apparently Canon wasn't interested in selling it to us.  Rumors say the EOS M2 won't be sold here either.  I doubt this new super zoom will make it to the US.  I just bought a SL1 and will be selling my EOS M with kit lens and adapter.  Yeah, I'll miss its size and uniqueness, but at least with the SL1 I can use all the lenses I already have without adapter and performance should be a little better.

I thought about buying the 11-22 overseas, and I still might.  With the 11-22/22/18-55, that would be about as much as I'd get for the M.  The 11-22 is supposed to be a bit better than the ef-s 10-22, which was a pretty good lens before I moved to full frame.  I sold all my ef-s lenses so moving to the SL1 wouldn't make sense for me.

378
Lenses / Re: Canon EF 100 f/2.8L IS Macro autofocus?
« on: December 26, 2013, 06:29:25 PM »
I'm curious to know just how much Macro folks that are recommending using AF are doing? It's a sizable part of my portfolio and AF isn't ever part of the equation.

I use AF for handheld stuff and with lower magnifications.  For higher magnifications and for greater DOF, the tripod, rails and flashes come out and AF stays off.

379
Lenses / Re: Canon EF 100 f/2.8L IS Macro autofocus?
« on: December 26, 2013, 04:35:16 PM »
One Shot AF should be used for most applications.  The lenses focuses to 1:1 at the MFD, but if you're closer than the MFD, the lens cannot focus.  It will take a while for it to give up though.  To test this, step back a foot and try again.  If it locks, get closer and try again.  At some point, you'll be closer than the MFD and it won't be able to lock.

For macro subjects, use the aperture to control the DOF.  If it shutter speed drops too much, then adding light (i.e. flash) would be the way to go.

380
Software & Accessories / Re: Black-rapid failure!
« on: December 26, 2013, 01:47:29 PM »

If a randomly applied rotational force is applied to screw threads, the probability of that force being applied in the direction that tightens the screw is equal to the probability of it being applied in the direction that loosens the thread. You might want to look up the definition of "random."

Using a similar theory playing roulette, I once bet on red thinking that it would eventually land back on red. So I doubled the bet each time knowing it would eventually hit and I would win and cover my losses. What I found is that it can hit on black ten times in a row. Perhaps it would work if I had more money at the time.

I felt just as if the camera had come loose from its strap, I was also randomly screwed.

Even if a game is 50/50, the expected value with = 0.5*value, but the expected value is only the likely value.  With many roulette turns, the expected value might be even but the odds of remaining exactly even decreases toward zero as more turns as taken because the probability is spread over a greater number of possibilities.  It is similar to the random walk phenomenon. 

381
Lenses / Re: Sigma 35/1.4 or ...
« on: December 26, 2013, 11:27:22 AM »
Sounds reasonable.  I used fast 24 and 35mm primes when I used a APS-C.  I then added a 50 when I moved to FF.

I guess the question is whether or not you'd be OK with the S18-35 replacing the Tamron 17-50.  That would be swapping one crop lens for another.  Then you'd have the 18-35/50/70-200.  It would require a bit more lens swapping but it would give you enhanced DOF control over the 18-35 range.

382
Lenses / Re: 6d/100L macro/Kenko 2X TC lockup
« on: December 26, 2013, 11:21:03 AM »
Nope, it's a bug with Kenko.  Complain to Kenko.  properly.

Complaints have been made, and they already deprecate the tc with 5d3/6d because of this bug... no way to "fix" it than to replace the whole thing since 3rd party manufacturers (Sigma, Yongnuo) only recently got smart enough to put usb interfaces into their products.

Clearly did not reverse-engineer Canon's software properly.

I doubt that, they re'ed what was the lens-body protocol at the time - but Canon changed or extended it, at least to enable dual afma for zooms. No one knows the change necessarily meant breaking the competition's products, but personally I don't think Canon minds a lot as they sell their own tcs.

I don't think so.  The version II TCs were out before the 6D/5DIII and did not need to be revised when the 6D/5DIII came out.  Canon extended the protocol, but what was existing worked as before.  That Kenko did not get reverse-engineer the software correctly is not Canon's fault.  That is the risk of buying third party parts.  My original post is that it is not Canon's fault that Kenko does not work with new cameras.  Kenko could have updated the software/firmware for a nominal fee, but chose not to.  Not Canon's fault.  Dgatwood's point is that it's Canon's responsibility to have their equipment work with third party parts.  I'm saying it's the other way.  What Sigma is doing is a step in the correct direction.

383
Lenses / Re: 6d/100L macro/Kenko 2X TC lockup
« on: December 26, 2013, 10:23:24 AM »
Thanks for your replies. Shutting off AFMA solved the problem, but as my 100L needed a +9 AFMA, not sure the overall solution will be satisfactory...

Complain to Canon.  A camera body locking up (freezing) is an unacceptable firmware bug, regardless of whether it occurs with Canon's lenses or someone else's.  It's a bug, and Canon needs to fix it.

Nope, it's a bug with Kenko.  Complain to Kenko.  Clearly did not reverse-engineer Canon's software properly.

384
Lenses / Re: Change Canon 17-40mm f4 L for Sigma 35mm f1.4??
« on: December 26, 2013, 07:40:51 AM »
You'll probably end up with the S35 in addition to the 17-40, but not as a replacement.  If anything the S35 would slot where your EF 40 is, but if you intend to use the 40 for street, then you'll end up with both.

385
EOS Bodies - For Stills / Re: 5d mk III, the honeymoon is over
« on: December 24, 2013, 07:09:21 PM »
I've got UPS "MyChoice" and can direct any delivery to my local UPS store.  It is afe there until I can pick it up.  This eliminates the box outside the front door when nobody is home.......especially boxes with words like B&H or Adorama on them!

I almost always have deliveries go to work – indoor loading dock, always someone to sign for them, and they get brought to my office. But I'm off for 3 weeks over the holidays, so they're coming here.

Apple products or consumer stuff delivered to work magically "disappear."  iPads someone ordered for a project were "lost" that way. 

386
Lenses / Re: Samyang 14mm f2.8 - focusing
« on: December 24, 2013, 08:08:20 AM »
I have heard that at f8 the DOF is massive - it's mainly for focusing on foreground objects I am struggling.

I am hoping the AF chip I have ordered helps, I dont want to have to spend five minutes setting up each shot and checking focus.

DOF increases quite a bit but the depth of critical sharpness is still thin, so it ultimately depends on how large the final image will be.  I find that I often prefer having the subject critically sharp and letting the DOF fall where it may rather than burying the subject in the zone of acceptable sharpness.

387
EOS Bodies - For Stills / Re: 5d mk III, the honeymoon is over
« on: December 24, 2013, 08:00:09 AM »
I love UPS because they are consistently awful. I know if I get the alert my package has been delivered and I haven't had a knock at my door I know to check the house at the end of my road that is #520 since my house is #620. It blows me away how often this happens. Even with stuff that says "Signature Required." Amazing!

Reroute it and pick it up at the depot instead.

388
Lenses / Re: Two New 24-70's Coming in 2014? [CR1]
« on: December 22, 2013, 09:59:53 PM »

$2499 for 24-70II to well under $2000 in just over a year.
$1699 for 24-70 f/4 to under a $1000 street price (as cheap as $899) in less than a year.
$849 for 35mm f/2 IS to $549 in about a year.
Etc... (and don't even get started on the EOS M)

It shows their overpriced policy backfired and supply was over demand making the lens drop in value

Probably not.  More like a variation of first degree price discrimination.  Canon has a price that it willing to sell at for a profit.  Anything they get above that is gravy.  Early adopters are willing to pay more, and Canon is turning that willingness into additional profit.

389
Third Party Manufacturers / Re: Zeiss Otus Initial Impressions
« on: December 22, 2013, 07:17:14 PM »
It isn't the amount of boke I was referring to. I hope you don't mind me using your photo, but here is a 100% crop that demonstrates the strange concentric rings inside of each boke blur circle (are you saying that funky effect is because the light sources are christmas lights?):

Are the concentric rings a function of the grinding process of the aspheric elements?  I noticed it in the 24-70 II, and the rings go away when the blur circle is a lot brighter.  It might be that the candles flames also have the same "feature" if the exposure is reduced by a few stops.

390
Pricewatch Deals / Re: Grab a Pancake! $129 at B&H Photo
« on: December 22, 2013, 07:50:53 AM »
Wait!  Does this lens come with the pinch-cap??  that's actually really important.. lol

Why yes, it does!

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