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Messages - Mt Spokane Photography

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5536
Lenses / Re: Filter stacking on 50mm lens
« on: October 22, 2012, 09:51:48 PM »
I heard of Canon reps suggesting against filter use for the general loss of IQ... then again, there are lenses that aren't fully weather sealed without a filter, and of course Canon doesn't make screw on filters anymore (or do they? They certainly aren't in the stores).

A Canon rep doing that might not have a job long if his boss found out.  Virtually every Canon supertelephoto lens has screw on filters made by Canon.  They just happen to mount on a pull out tray in the rear of the lens.
http://www.adorama.com/searchsite/default.aspx?searchinfo=canon%20filters&category=2350&utm_term=ae29967dcfaa43718093dc5e78254033e&utm_medium=Others&utm_campaign=Search&utm_source=adl-um
 
http://shop.usa.canon.com/webapp/wcs/stores/servlet/subCategory_10051_10051_-1_12111

5537
Lenses / Re: Focusing motor broken on EF 28mm f/1.8?
« on: October 22, 2012, 09:44:44 PM »
The original owner helped me do some research and suggested I try spinning the ring around several times before holding it in place while autofocusing to see if the lens still focuses as it should under normal conditions.

And it does!

CharlieB I'm sure you are right in that sense of the problem. The owner had not used the lens for a long time and it had been sitting in the bottom of his camera bag. The more I spin the ring and have the lens focus, the less the motor pulls on it. So it turns out that it's just a bit stiff. Coupled with the lens being overheated in the car though, it did seem like a very serious problem.

I talked to someone once who kept their camera equipment in a cooler in their car. Now I know  ::) I didn't realize what effect heat could have on a lens.

And thank you for the tip Mt Spokane Photography. I'll start considering repair cost when buying used to see if I'd actually be saving any money.
Lenses getting hot in the trunk are a nightmare.  I am able to repair my own lenses to some extent (repaired two old Minolta MC lenses Sunday).  Both had the lube separated likely from heat, and run into the aperture.
 Sometimes, the lube in old lenses just hardens, particularly if they have not been used for 10-15 years.  Then it has to be scraped out and replaced.
Not all old lenses are easily cleaned, but the Minoltas can be done in 15 minutes, and ten minutes is spent swabbing the lube off the aperture blades.

5538
EOS Bodies / Re: 5D mkIII image "Dust" after impact
« on: October 22, 2012, 07:31:42 PM »
The issue is the source of the bits.  they are not dust, something broke either in the lens or in the camera body.  Not all the parts may have went into the light path, some of them may be lurking ready to destroy the shutter and create a very expensive repair.
Do not use the camera or lens, have both checked out.

5539
Lenses / Re: 85 1.8 vs Zeiss 85 1.4
« on: October 22, 2012, 07:27:33 PM »
I recently tried the Zeiss 85mm f/1.4 manual focus lens, and I must say, it is stunningly unique. Unfortunately, I would have liked to compare that lens to the EF 85mm 1.8, but none of the rental places in my area seem to have it (they only have the 85L apparently...  :o ). So I was just wondering is more than double the price and the lack of autofocus really justify the nice bokeh and IQ of the Zeiss? What are your experiences with the Canon? And if I'm into mid-tele portraiture, is there any other lens (preferably under 1k) that I should consider? I shoot a 5D2.

Thanks!
The Canon 85mm f/1.8 is very good, and a bargain for the price.  Only you know if you can do without autofocus. (I can't).    The 100mm f/2 is another to consider, it really depends on the working distance available.

5540
Lenses / Re: Focusing motor broken on EF 28mm f/1.8?
« on: October 22, 2012, 07:21:57 PM »
I had a used 50mm f/1.4 did that.  It had been dropped and broken internally.  It worked fine until you tried to close focus.  It cost me $95 to have it repaired by Canon.
If you can return it, do so and buy one new.  I always allow for a trip to Canon repair in the price I pay for a used lens.  Many owners don't recognize the problem when they see it, they just think they are doing something wrong.

5541
Getting a correct expoosure and avoiding underexposure is critical use higher ISO to get a good exposure.  There will be less noise than you get from a underexposed image.
The big issue with low light and high ISO shooting is not noise, but lack of DR.  A dim light on one side of the stage can be blown out while the rest of the image is underexposed.  Don't be afraid to increase ISO enough to slightly overexpose, pulling down the exposure 1/3 stop in Lightroom decreases noise in the dark areas.

5542
Site Information / Re: "Awaiting approval"???
« on: October 22, 2012, 05:05:21 PM »
I believe that that is part of a new spam prevention engine that CR guy is trying out.  It flags links to known spam sites so the moderator can review them to keep or delete.
The software is called Askimet and I happen to know its under test.

5543
EOS Bodies / Re: 5D Mark III LCD Brightness Preview Too Dark
« on: October 22, 2012, 04:58:16 PM »
Avoid using the back lcd to try and guess at correct exposure.  If you must, turn exposure simulation to the on position.
 You might check to see that what your settings are for exposure simulation (pg 205 of your manual).  The setting will make a big difference in the brightness you may see on the LCD.  Changing the LCD brightness setting should only be done after understanding exposure simulation settings.

5544
EOS Bodies / Re: 5D mkIII image "Dust" after impact
« on: October 22, 2012, 04:45:27 PM »
It looks like some debris on the rear element of the lens.  Don't forget to check and clean it.  I'd send the lens and camera in for a full checkup in any event.

5545
EOS Bodies / Re: Canon 5DIII for $3200 @ BnH
« on: October 22, 2012, 01:04:44 PM »
They will drop to $2700 by Christmas.  I already bought one of the ones from Adorama for $2750.

5546
EOS Bodies / Re: Are there 39mp & 50mp+ Test Bodies in the Wild? [CR1]
« on: October 22, 2012, 01:03:28 PM »
I shoot 500-1500 images at a time.  I bought a D800, and after my first 500 image shoot, I was faced with days to process them, even with a fast pc and plenty of memory.  A super pc might cut the time by 20%, but that would still not be something I'd want to face.  The idea of buying a high mp camera only to use sraw seems silly to me.  Eventually, computers may catchup, but for now, 50mp raw files would be for those who only take a few shots and want to spend a hour processing each one.

5548
Lenses / Re: Bring 120-300 OS or buy 55-250mm ?
« on: October 21, 2012, 11:54:27 PM »
I certainly would not bring either as my only lens on a crop body.  Perhaps a 15-85mm plus a fast prime. 35mm, 50mm, 85mm, or maybe 135mm. 
 

5549
Lenses / Re: Next lens to purchase.
« on: October 21, 2012, 11:48:37 PM »
I'd go for a 100-400mmL for the air show, a zoom can be handy even though you will use it at 400mm a lot.  Add a fast prime for portraits 85 f/1.8, 135mmL, or a 100mmL (which would do portraits and macro both)

5550
Lenses / Re: Lens combos under $1000
« on: October 21, 2012, 11:45:24 PM »
This topic is mainly out of curiosity to see what people think, and hopefully it will also help some budget-restricting people!


Say you just spent $1000ish on a 60D, and now you need some lenses, but TOGETHER They need to be under $1000. What would you choose?

It really depends on your type of photography.  I have a 15-85 which I love, but a longer telephoto might be nice too, Canon has the refurb 55-250 IS for $167, which would let you pickup the  refurb 15-85 and a inexpensive 50mm f/1.8.  There is a 30% off sale goiing on for a couple of days, so take a look.
http://shop.usa.canon.com/webapp/wcs/stores/servlet/ProductListingViewAll_10051_10051_-1_22751

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