September 16, 2014, 05:38:03 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 - mrsfotografie

Pages: 1 ... 3 4 [5] 6 7 ... 93
61
haven't seen a camera yet that didn't have, or eventually develop, some hot pixels.
That's what dark frame subtraction's for, even the in-camera process is usable for most shots.

At least SOME mfrs, NOT Canon, NOT Nikon, allow you to map out bad pixels right from the camera menu.

Not true, doing a 'sensor clean' with the cap on for a minute or so allows the camera to remap the sensor, and gone are all the hot pixels  8)

That is indeed a great and easy way to do it! Did that last winter - it was so easy I thought someone was just trying to pull our legs with that tip.
It's not as official as an actual menu-item so can someone describe the method in more detail and I'll test it out.
I have a Rebel that developed a bunch of hot pixels as I was shooting studio shots with it over a matter of minutes.  So I can test that out.

With the lenscap on the lens, go to the camera menu and select 'manual cleaning'. The mirror will flip up and the camera black out. Leave it for a minute, then switch off the camera to complete the 'cleaning'. You can do this with any lens on the camera, no need to use the body cap.

62
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 24, 2014, 05:18:43 AM »
this thread brought me to finding these two lenses

especially the 28mm pancake looks so sweet and I bet it exactly fit my travel bag  ;D

You do realize these are MF (with confirmation) only?

yes I do, but I think MF should be fine for travel landscape  ;)

For that, these primes are excellent. I shot this panorama with the Voightlander 40mm at f/5.6 (7 frames combined). Mind, I sold the 40 mm after a year or two because I found I wasn't using it much, and for a walkaround the MF was inconvenient, and the 40mm focal length uninspiring.

63
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 04:40:21 PM »
this thread brought me to finding these two lenses

especially the 28mm pancake looks so sweet and I bet it exactly fit my travel bag  ;D

You do realize these are MF (with confirmation) only?

64
haven't seen a camera yet that didn't have, or eventually develop, some hot pixels.
That's what dark frame subtraction's for, even the in-camera process is usable for most shots.

At least SOME mfrs, NOT Canon, NOT Nikon, allow you to map out bad pixels right from the camera menu.

Not true, doing a 'sensor clean' with the cap on for a minute or so allows the camera to remap the sensor, and gone are all the hot pixels  8)

65
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 03:51:57 PM »
I would love to have 20mm pancake on FF

I think we'd like a 20mm prime of any sort in FF.  Canon hasn't made a new once since 1992.

- A

True, I went for the Sigma, which for all the bad press still is a great and fun lens to have in my kit.

66
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 03:48:56 PM »
Do people like these pancakes just because they are cute (no argument there)? What am I missing?

Many people bought the 40 mm just because it was 'cool' and then lost it somewhere between the padding of their camera bags and never realized it went missing  ::)

67
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 03:45:22 PM »
I wonder what the limits of a "pancake"'lens are. Could they make a 14mm or 85mm pancake?

Since Pentax can make a 70mm f2.4 Pancake and a really small 15mm f4.0 for APS-C, I think it is not completely impossible but the Limiteds are a bit pricy unlike the EF40.

Wait till they include diffractive optics into the mix :)

68
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 03:44:33 PM »
The beauty of the 400 prime over the zoom is size/weight and image quality, as well as it would be cheaper.

A new 100-400L would very likely improve over the old one in size, weight, and image quality, and improve for Canon in cost.   ;D

As in 'improve' you mean 'more' I think? I also think a new 100-400 will be bigger and heavier especially if it's twist zoom.

All the newer teles have gotten lighter.  I expect the same.

The 70-200 f/2.8 IS (II) increased both in size and weight...

http://www.the-digital-picture.com/Reviews/Lens-Specifications.aspx?Lens=103&LensComp=687&Units=M

69
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 10:31:20 AM »
The beauty of the 400 prime over the zoom is size/weight and image quality, as well as it would be cheaper.

A new 100-400L would very likely improve over the old one in size, weight, and image quality, and improve for Canon in cost.   ;D

As in 'improve' you mean 'more' I think? I also think a new 100-400 will be bigger and heavier especially if it's twist zoom.

70
5D mark III Central autofocus point performance with Tamron SP 150-600mm F/5-6.3

Today I discovered a very strange behavior of autofocus of this lens on 5D mark III.
If you use a single autofocus point it appears that the central point works much worse than others.

The main problem is in refocusing from near objects (~3m) to far away ones (30m).
 If only a single center autofocus point is selected for use , the lens is refocusing from near objects to remote very badly. In many cases it gets stuck.

In fact, somehow, I obviously thought that the center point should give the best results. But it turned out that any other point except the central one provides much better refocusing (on 5D mark III). It works a bit slow but OK.

At first, I suspected that maybe it's my camera glitches. So, I put on the Canon EF300 / 4 L IS with 1.4x converter, and of cause the central point here worked exceptionally well with a Canon lens, so that means the camera is OK.
Just don’t understand how it is possible?

P.S.: The lens has actually been updated with the new firmware at a local Tamron service.
The AF menu, "Lens drive when AF impossible" is turned "ON".

I get odd results with the center point and my 100-400L too, so it's not likely to be 'just' Tamron's fault ;)

71
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 08:57:31 AM »
The thorn in my side is a new version of the 400 5.6L. The oldest lens in the line up now yet to be re-worked
IS plus a closer min focus.
Thank you please Canon

I might be interested in that lens, also. But it would have to compete with a new 100-400L.

72
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 08:51:19 AM »
I hope they don't improve the optics on the new 15-85. I want to keep mine  ::)

Be careful what you wish for ;)

73
PowerShot / Re: New Large Sensor PowerShot Rumor [CR2]
« on: August 23, 2014, 08:47:43 AM »
I think such a camera makes sense. Cameras now have to compete with smart phones on image quality, not portability.

74
Lenses / Re: A New Pancake Lens? [CR1]
« on: August 23, 2014, 08:03:38 AM »
The 44mm flange distance makes a non retrofocus (ie pancake) 24mm EF or EF-S lens unlikely.

Really? 'Pancake' does not have to preclude 'retrofocus'.





http://www.voigtlaender.de/cms/voigtlaender/voigtlaender_cms.nsf/id/pa_fdih8vxb7z.html

75
Sports / Re: The first Olympic game/ Field , in this world 776 BC.
« on: August 21, 2014, 05:14:11 PM »
Aphrodisias, Turkey...  ;)





Pages: 1 ... 3 4 [5] 6 7 ... 93