August 31, 2014, 12:41:53 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 - Mt Spokane Photography

Pages: 1 ... 336 337 [338] 339 340 ... 549
5056
The local cave wardens would string up anyone using a flash.  They supposedly do a lot of damage.

I have a hard time believing that. From what exactly, a few microseconds of photons? Open a cave to the noonday sun for a week and it will change things, but a flash doesn't make sense. And if so, then how is a headlamp supposed to be OK?

Quote
There are low level lights though, so my 5D MK II/ 35mmL worked just fine.

I probably would have done better if I could have stopped. I was with a group that was marching forward.

Quote
Gardner cave in NE Washington State up near the Canadian Border.  Sorry for the poor photoshop job, I removed some obstructions from the image, and its a poor job.

Nice, I'll have to visit it next time I'm up there.
You are right, its my poor memory.  They prohibit you from touching the delicate formations, not from using flash
If you are ever up here, drop a e-mail and we might be able to meet.
Here is some damage, I thought the guide said it was from bright lights letting the alge grow.
 

 
 
Setting up a tripod - just too many people in a group, and not enough room on any flat places.  Mistly, the descent is on narrow and steep stairs cut into the rock, or steel stairs.  A  monopod should work though.
The 35mm L and 5D Mark II worked very well, but in some places, a flash would have been needed.  I restricted my photos to areas close to a light.

 
A small side vent that probably goes to the surface somewhere in the trees and rocks above.  The cave has been pretty well explored and documented over the years, but I only have my recollection of what the guide said. 
 

 

5057
EOS Bodies / Re: Question - Auto focus speeds & Battery Grips
« on: August 08, 2012, 11:55:19 AM »
The two lower-voltage batteries in a grip are used alternately, not simultaneously, so no boost.

I didn't mean to imply that with a grip it can increase the AF speed. I was referring to the fact that as a battery is almost completely drained it can provide a slightly lower voltage. So a battery grip, since it provides more total energy stored, can keep the rated voltage longer.
The power and voltage of a Li-on battery does not drop off like a regular battery.  Circuitry internal to the battery monitors it, and throws a electronic switch when it senses that it is nearly discharged.  Any drop in voltage is very small.
This is noticibly apparent in my DeWalt Drill Driver which uses a Li-on battery.  It drives screws, even difficult ones with full strength, and suddenly shuts off while driving a screw, it does not fade away like nimh ot nicad batteries.
There is a good reason for this, a Li-on battery cannot stand being fully discharged, if that happens, it cannot be recharged without some special equipment.  So the battery may shut down when it gets to 10% or so of capacity.

5058
I started a similar thread earlier as I was looking at the 28-300 for the same reason- at certain events I find the 24-105 not long enough for some shots, and when I have the 70-300 sometimes I find myself wanting to go wider. From reading reviews It seems the 28-300 delivers comparable performance to the 24-105 at the respective focal lengths, but once you get past 100mm it can't deliver the IQ of a decent telephoto. (seems like very average or even mediocre performance, especially considering the $2500 price tag & weight).

My take is that this is a lens you use when you want a good quality general walkaround (focal lengths 28-100mm), but would also like telephoto coverage (100-300mm) when necessary, without the hassle of switching lenses. In that case, an average-quality shot is better than a missed shot.

It is certainly not a average lens, if yours has a issue, send it in for repair.

5059
Lenses / Re: EF 40mm STM Pancake Problem Acknowledged
« on: August 07, 2012, 11:04:14 PM »
I played with mine some more today.  With the lens mounted to my powered up 5D MK II, I pushed the barrel of the lens all the way back, and did a lot of other screwy things, but it kept on working perfectly.  Apparently not all of them have the issue, or it is particular to certain camera bodies.
Or maybe just an early batch is affected?
I think mine is a early batch.

5060
Lenses / Re: EF 40mm STM Pancake Problem Acknowledged
« on: August 07, 2012, 10:57:21 PM »
I played with mine some more today.  With the lens mounted to my powered up 5D MK II, I pushed the barrel of the lens all the way back, and did a lot of other screwy things, but it kept on working perfectly.  Apparently not all of them have the issue, or it is particular to certain camera bodies.

5061
The local cave wardens would string up anyone using a flash.  They supposedly do a lot of damage.
There are low level lights though, so my 5D MK II/ 35mmL worked just fine.
Gardner cave in NE Washington State up near the Canadian Border.  Sorry for the poor photoshop job, I removed some obstructions from the image, and its a poor job.

5062
Although Canon has not been releasing codecs for 64 bit windows, Microsoft does release them, but slowly. 
The good thing, is that the codec covers multiple manufacturers.
http://www.microsoft.com/en-us/download/details.aspx?id=26829
No support for the 1D X though.

5063
Software & Accessories / Re: Need advice - Pixma P9000Mk2 or P9500Mk2 ?
« on: August 07, 2012, 01:34:37 PM »
I think Epson is the one with heads that clog.  My 3880 takes one day before the red head starts to clog.  In two days, the yellow clogs as well.  I run a cleaning every other day to keep from any serious clog.  Expensive!

5064
Lenses / Re: EF 40mm STM Pancake Problem Acknowledged
« on: August 07, 2012, 01:31:48 PM »
Well heck.
I guess I had that happen on my 60D.

I was fiddling around a bit absent minded & the lens moved inward with a fairly light pressure made by my finger. I saw it move about 1/8 inch  :o (oops) & thought that didn't seem right.

I had to pop the battery out & back in to get functionality back in the lens ( didn't try re seating the lens ). It seems it just froze up causing no damage  :) . Definitely sensitive, glad their doing a fix because it could be a pain in the butt ox if it happened often.
If you push the end of the lens barrel to put on the cap, or whatever, it will telescope in, some may take more perssure, but all of them move.
What should noot happen is for the camera to lockup when it senses a lens movement. 

5065
Lenses / Re: EF 40mm STM Pancake Problem Acknowledged
« on: August 07, 2012, 10:00:19 AM »
I tried to see if I had the issue, mounted mine to my 5D MK II and pushed on the lens, and of course, it would not autofocus because the barrel could not move with me pushing on it.  I removed my finger and it worked fine.  I tried squeezing the barrel too, but that has no affect.
Then, it dawned on me that what they must be saying is that some cameras lock up when you do not allow the lens to autofocus by pressing  the focus barrel or focus ring on the front of the lens.
Thats why the fix is firmware for the camera.  nothing wrong with the lens.

5066
EOS Bodies - For Stills / Re: How rugged is my 5D Mkiii?
« on: August 06, 2012, 10:53:22 PM »
There is no standard to define ruggedness or protection.  One camera might survive a big time hit while another fails with a little bump.
The trick is where to provide the bump.
It all depends on the individual and the way you use the camera.  If you thiink it will get dropped or banged around, one of the protective covers will help.  However, a 1 series body is definitely built to take a licking.

5067

Generally speaking, if you want to criticise someone else's results of a scientific method then you do so by doing your own experiments that prove your point. And yes, I'm willing to bet that the method DxO use to generate the raw numbers that goes into those calculations and the method of arriving at the calculations in that table is a lot more scientific than the process of saying "That 0.0 is wrong and because that 0.0 is wrong all other results lack credibility."

A wrong answer on one calls every answer into question.  That is how a engineer views it.  And, I have done plenty of scientific reports for NASA.
The difference is that my reports were checked by a person, not just something kicked out by a formula in a spread sheet.  If the spread sheet calculated one wrong, its not up to me to verify all of them.

5068
EOS Bodies - For Stills / Re: 5D Mark III and green RAw!!!
« on: August 06, 2012, 11:27:10 AM »
Even if it is very rare it's UNACCEPTABLE!

It may ruin an once in a lifetime shot. If someone cannot count on their equipment then the equipment is not worthy.
It would seem that as more modern and capable cameras are made reliability would improve and this is clearly not happening.
This (or anything similar) has never happened on my 5DMkII.
So,Most photographers are very happy to have 50% of their images become keepers.  You must not be willing to accept one of 15,000 that are not perfect. 
What are you going to do if one day the photographer goofs and you have a poor image?  Send him back to the factory?
This could be easily caused by opening the battery door before the camera finished writing.  If so, send the photographer back, one of 15,000 is unacceptable.
 

5069
Lenses / Re: Special serial number codes?
« on: August 05, 2012, 08:50:53 PM »

Also, Canon took the time to adjust their factory setup and whatnot to make the 18-55 IS II, which is otherwise practically identical to the 18-55 IS, with all the hoopla of 'releasing' a version II a while ago,
I do not recall a Canon announcement or hoopla in the USA for the version II, it just started showing up with no announcement at all.  As you said, it was merely cheaper to produce.  At least, they Identified it, so a buyer can tell which it is.

5070
Lenses / Re: Special serial number codes?
« on: August 05, 2012, 07:38:32 PM »
The tactic seems to work. The auction ended and the lens has been sold for 50EUR more than new.

And while we are at it here is a 24-105L for 10.000EUR:

http://www.ebay.de/itm/Canon-LENS-EF-24-105-mm-4-0-L-IS-USM-Sehr-Gut-UX0515-/261077141570?_trksid=p4340.m1850&_trkparms=aid%3D222001%26algo%3DSIC.CURRENT%26ao%3D1%26asc%3D39%26meid%3D1115965349429094114%26pid%3D100011%26prg%3D1027%26rk%3D5%26
The link takes me to a auction for 829 euros, I do not see 10,000.

Pages: 1 ... 336 337 [338] 339 340 ... 549