October 02, 2014, 08:52:24 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 - East Wind Photography

Pages: 1 ... 28 29 [30] 31 32 ... 48
436
Landscape / Re: Post Your Comet Pictures
« on: April 04, 2013, 05:01:26 PM »
Optical ones have to be specifically tailored to the lens.  I was referring to software.  You do lose something in software but the results are better than without.  I know you can do stacking in photoshop but never tried this kind of stacking.  Rather than play with another SW package I may try tinkering with the capabilities in what I have and see if I can get similar results.

I didn't want to lose any light since I couldn't use longer exposures on this occasion. I can't remember if the 135/2 did improve much stopped down now... and when you say CA filter, do you mean the optical sort or software sort? Effectively I did my own version of a software approach for this image. I haven't looked at exactly how the optical ones work but presume they filter out certain wavelengths so as to reduce the effect. But I'm not sure they're applicable in this scenario anyway.

437
Landscape / Re: Post Your Comet Pictures
« on: April 04, 2013, 04:03:17 PM »
Most lenses wide open have a difficult time reproducing point stars and have all of the colors line up.  How does the 135 stand up to a click or two stopped down?  I would think 2.8 or 3.1 would clean up the red halos....but still you can probably filter out most of the red halos with a good CA filter.

I did most of the processing in PixInsight. I made flats to correct for the vignetting of the 135/2 wide open and calibrated, aligned and stacked in there. Then some cosmetic fixes in PSE afterwards. The 135/2 isn't great for OSC astro imaging. The red focus is quite a bit off compared to green and blue, so you get nasty red halos around bright stars. I'm wondering if the new Zeiss 135/2 APO would be better, but it isn't at a price that means I will find out any time soon. The Canon 135/2 does ok for narrowband imaging though.

438
Landscape / Re: Post Your Comet Pictures
« on: April 04, 2013, 03:07:13 PM »
Very nice and the stacking technique clearly helped.  What software do you use to stack these?

Canon 600D unmodified. Astronomik CLS-CCD filter (reduces impact of sodium lighting). Canon 135mm f/2L at f/2. ISO3200. 50 shots stacked of 5s exposure each.

I only took a fixed tripod so had to keep exposures short to reduce the impact of star trailing. The fizzy blob above the comet is Andromeda galaxy. The two should be very close in the sky around now, if I get another clear night I'll give it another go.

439
Landscape / Re: Post Your Comet Pictures
« on: April 04, 2013, 01:03:47 PM »
I tried for a shot with Andromeda but was unable to get one.  :)  Nice capture.

A shot of Panstarrs from the UK, noisy and not the sharpest due to being shot at ISO 6400 on a 7D with no post processing, but the comet is plainly visible along with a fuzzy patch of light that is Andromeda up top!

440
EOS Bodies / Re: Question re: real world experience with 5D MkIII AF
« on: April 03, 2013, 03:34:43 PM »
No duh's  ;D.... It's a lot to ingest.  There are some very good white papers on Canon's DLP site on AF, mostly for 1DX.  But since they share the same AF system, almost all of the settings function the same.  Only iTR tracking and metering on the selected AF point are different.

http://learn.usa.canon.com/resources/articles/2012/1dx_guidebook.shtml

Click the PDF link near the bottom of the page.

AF4 on the menu.  Manual page 98 under selectable AF point.  The manual says when you manually select all 61 points, all will be used.  It's only when you manually select AF points.  It also says in a foot note that expansion will also still work regardless of this setting.  I assume that the center point will always have to be a cross type point but the expanded points may not be.


AF accuracy on the 5DIII is slightly better than the 1D IV.  AF speed might be on par or a little less but even with BIF shots I didn't notice the difference at all.  The benefit of using the 5DIII is that you will also get closed loop AF with Canon's newer lenses such as MK II models.  Those lenses now report AF position back to the camera.  However, even with the older lenses, the AF accuracy is improved.

For best AF accuracy for action, you also need to set the firmware to use only cross type af points.  If you have it set to use ALL of them, it's possible for the AF to be less accurate...It's fine to use ALL of them if you are shooting static subjects.

Most people using the older bodies are accustomed to using the center point only.  While that is still a very good option for most, the 5DIII offers a few other AF modes that are an improvement over using just the center point....and with most modest lenses, a large block of the center AF points are all cross type.

Lots of benefits to using the 5DIII for action....but a lot more options to tweak based on what you are shooting.  It's a bit overwhelming.  I've been using a 5DIII for about 1 year now shooting almost exclusively wildlife and I'm still finding tweaks that are improving the numbers of keepers in certain situations.  Steep learning curve but glad I have it.

BTW, got rid of the 1D IV and 7D.  Now waiting for the 7DII to come out as my 2nd body.


I apologize if this has been covered in the past but I did a quick search on the subject and could not find what I was looking for.

I'm hoping that someone out there has some real world experience and can answer my question.

How does the 5D MkIII AF compare to the 1D MkIV?  I'm particularly interested in the accuracy and AF lock-on speed.  My primary use is action photography;  motocross and birds in flight.

The lenses I mostly use, in order of time on the camera are:

70-200 f/2.8L IS II
300 f/2.8L IS
400 f/5.6L
135 f/2L

I should mention that I do not intend to replace my 1D MkIV, which I have been using for 3 years.  If I acquired a 5D MkIII, it would be a second body to use primarily at the motocross tracks.  Most likely, I would carry the 300/2.8 mounted on the 1D MkIV and the 70-200/2.8 or 135/2 mounted on the 5D MkIII.

I am also not concerned with the burst rate as 6 fps would be adequate.  I normally keep my 1D MKIV set at 7 fps for motocross and it's been fine.

Any help would be appreciated.

That's great information.  Thanks.

I read the paragraph above with particular interest in your comment regarding the setting in the firmware for using only cross type AF points.  I have downloaded the manual but have been unable to find any reference to where and how that is done.  Do you mean to select a point with expansion or a zone that would only include those?

Are you able to elaborate?

Got it.  I think I must have stopped reading at page 96.  Duh me.  Much appreciated.

441
EOS Bodies / Re: Question re: real world experience with 5D MkIII AF
« on: April 03, 2013, 01:20:54 PM »
AF4 on the menu.  Manual page 98 under selectable AF point.  The manual says when you manually select all 61 points, all will be used.  It's only when you manually select AF points.  It also says in a foot note that expansion will also still work regardless of this setting.  I assume that the center point will always have to be a cross type point but the expanded points may not be.


AF accuracy on the 5DIII is slightly better than the 1D IV.  AF speed might be on par or a little less but even with BIF shots I didn't notice the difference at all.  The benefit of using the 5DIII is that you will also get closed loop AF with Canon's newer lenses such as MK II models.  Those lenses now report AF position back to the camera.  However, even with the older lenses, the AF accuracy is improved.

For best AF accuracy for action, you also need to set the firmware to use only cross type af points.  If you have it set to use ALL of them, it's possible for the AF to be less accurate...It's fine to use ALL of them if you are shooting static subjects.

Most people using the older bodies are accustomed to using the center point only.  While that is still a very good option for most, the 5DIII offers a few other AF modes that are an improvement over using just the center point....and with most modest lenses, a large block of the center AF points are all cross type.

Lots of benefits to using the 5DIII for action....but a lot more options to tweak based on what you are shooting.  It's a bit overwhelming.  I've been using a 5DIII for about 1 year now shooting almost exclusively wildlife and I'm still finding tweaks that are improving the numbers of keepers in certain situations.  Steep learning curve but glad I have it.

BTW, got rid of the 1D IV and 7D.  Now waiting for the 7DII to come out as my 2nd body.


I apologize if this has been covered in the past but I did a quick search on the subject and could not find what I was looking for.

I'm hoping that someone out there has some real world experience and can answer my question.

How does the 5D MkIII AF compare to the 1D MkIV?  I'm particularly interested in the accuracy and AF lock-on speed.  My primary use is action photography;  motocross and birds in flight.

The lenses I mostly use, in order of time on the camera are:

70-200 f/2.8L IS II
300 f/2.8L IS
400 f/5.6L
135 f/2L

I should mention that I do not intend to replace my 1D MkIV, which I have been using for 3 years.  If I acquired a 5D MkIII, it would be a second body to use primarily at the motocross tracks.  Most likely, I would carry the 300/2.8 mounted on the 1D MkIV and the 70-200/2.8 or 135/2 mounted on the 5D MkIII.

I am also not concerned with the burst rate as 6 fps would be adequate.  I normally keep my 1D MKIV set at 7 fps for motocross and it's been fine.

Any help would be appreciated.

That's great information.  Thanks.

I read the paragraph above with particular interest in your comment regarding the setting in the firmware for using only cross type AF points.  I have downloaded the manual but have been unable to find any reference to where and how that is done.  Do you mean to select a point with expansion or a zone that would only include those?

Are you able to elaborate?

442
EOS Bodies / Re: Question re: real world experience with 5D MkIII AF
« on: April 03, 2013, 11:10:04 AM »
AF accuracy on the 5DIII is slightly better than the 1D IV.  AF speed might be on par or a little less but even with BIF shots I didn't notice the difference at all.  The benefit of using the 5DIII is that you will also get closed loop AF with Canon's newer lenses such as MK II models.  Those lenses now report AF position back to the camera.  However, even with the older lenses, the AF accuracy is improved.

For best AF accuracy for action, you also need to set the firmware to use only cross type af points.  If you have it set to use ALL of them, it's possible for the AF to be less accurate...It's fine to use ALL of them if you are shooting static subjects. 

Most people using the older bodies are accustomed to using the center point only.  While that is still a very good option for most, the 5DIII offers a few other AF modes that are an improvement over using just the center point....and with most modest lenses, a large block of the center AF points are all cross type.

Lots of benefits to using the 5DIII for action....but a lot more options to tweak based on what you are shooting.  It's a bit overwhelming.  I've been using a 5DIII for about 1 year now shooting almost exclusively wildlife and I'm still finding tweaks that are improving the numbers of keepers in certain situations.  Steep learning curve but glad I have it.

BTW, got rid of the 1D IV and 7D.  Now waiting for the 7DII to come out as my 2nd body.


I apologize if this has been covered in the past but I did a quick search on the subject and could not find what I was looking for.

I'm hoping that someone out there has some real world experience and can answer my question.

How does the 5D MkIII AF compare to the 1D MkIV?  I'm particularly interested in the accuracy and AF lock-on speed.  My primary use is action photography;  motocross and birds in flight.

The lenses I mostly use, in order of time on the camera are:

70-200 f/2.8L IS II
300 f/2.8L IS
400 f/5.6L
135 f/2L

I should mention that I do not intend to replace my 1D MkIV, which I have been using for 3 years.  If I acquired a 5D MkIII, it would be a second body to use primarily at the motocross tracks.  Most likely, I would carry the 300/2.8 mounted on the 1D MkIV and the 70-200/2.8 or 135/2 mounted on the 5D MkIII.

I am also not concerned with the burst rate as 6 fps would be adequate.  I normally keep my 1D MKIV set at 7 fps for motocross and it's been fine.

Any help would be appreciated.

443
EOS Bodies / Re: 5D Mk III Firmware, any news?
« on: April 02, 2013, 12:19:03 PM »
No they will hold those until 7DII release!  :)


of course the cool thing to do would be to hit the target date with a few surprise firmware tweaks, but i'm not holding my breath.

444
EOS Bodies / Re: 5D Mk III Firmware, any news?
« on: April 02, 2013, 12:18:09 PM »
Canon will market the release for as long as possible so I don't expect it until 4/30.

Post from Canon Australia back in February says -

We are developing a solution to enhance the focusing feature for the EOS 5D Mark III and EOS-1DX and plan to release a firmware update based on following estimated schedule:

    EOS 5D Mark III: (estimated) Late April, 2013
    EOS-1DX: (estimated) Late May, 2013

Personally, I don't hold out much hope of it being on time or the focal point illumination being fixed given past history - it's been 6 months since it was announced!

445
1D X Sample Images / Re: Any Thing shot with a 1Dx
« on: March 29, 2013, 11:34:52 PM »
I see. Yes for printing its good to over sharpen a little.  Just curious as I notice the compression algorithms on these sites do play with my mind sometimes.  Difficult to make comparisons when everything gets compressed by 50%.

Excellent shots.  I enjoy checking back in to see what else you have posted.

Quote from: East Wind Photography link=topic=8079.msg25035Ahasg250357 date=1364567425
These are great shots but even after looking at the full JPG, they all seem to be over sharpened to me...more so after the web downsizing.  Did you sharpen these or is this just an affect of compression uploading to the forums?

1Dx 400f/2.8 V2, shot f/2.8 & 1/1600th

Have to admit this Guy made me uncomfortable, he seemed to be eyeing me up for a Dinner Option.

Hi "Eastwind", Guilty I'm afraid, although I try not to over sharpen, what I post is generally the file that I print, so it's had a little more sharpening than I would normally apply so that it Prints well. But I appreciate your comment and I tend to sharpen to what I feel looks right (In On One), then back off a little, sometimes/often I don't back off enough.

446
Software & Accessories / Re: Wimberley Head versus Wimberley Sidekick
« on: March 29, 2013, 04:41:00 PM »
I use the WH-200 and it is smooth and supports the lens very well.  I have full trust in it's ability to support my system.  If you have to decide to change heads for macro work, maybe consider another tripod for that.  I use a smaller carbon fiber model with a ball head for macro portrait work.  The Wimberly just stays mounted on my Induro CF.

Hey folks

I just picked up a Canon 500mm. I already have Gitzo a Gitzo 3530 tripod with a Markins M10 ballhead that I use mainly with my 180mm Macro.

I'm undecided on the right approach for the head. I'd like to choose either the Wimberley Sidekick, or a Wimberley WH-200 Head. Of course, the disadvantage to the Wimberley Head is that whenever I want to do any Macro work, I'd have to pull the Wimberley head off and pop the Markins back on. From surfing the web, I get the impression that a ballhead is more convenient for smaller lens like the 180 and the 70-200 than the Wimberley Head.

I don't want to get a second tripod, and while I have considered a monopod, I'd like to work with the new tele on a tripod - for a while, at least.

Has anyone here used both a Sidekick and a Wimberley Head? Does anyone have any first-hand experience, suggestions, or thoughts on my choices?

Cheers

447
EOS Bodies / Re: EOS 1V Film SLR
« on: March 29, 2013, 02:39:55 PM »

448
1D X Sample Images / Re: Any Thing shot with a 1Dx
« on: March 29, 2013, 10:30:25 AM »
These are great shots but even after looking at the full JPG, they all seem to be over sharpened to me...more so after the web downsizing.  Did you sharpen these or is this just an affect of compression uploading to the forums?

1Dx 400f/2.8 V2, shot f/2.8 & 1/1600th

Have to admit this Guy made me uncomfortable, he seemed to be eyeing me up for a Dinner Option.

449
EOS Bodies / Re: EOS 7D Mark II Test Camera [CR1]
« on: March 28, 2013, 10:33:41 AM »
I wouldnt be surprised to see it priced over the 5diii.  Canon has never let us down by pricing stuff at 2 year ago pricing.  Expect them to drain your wallet as much as they can before bringing the price down.

Interresting, in Japenese forums he specs are handeld a little bit better. Price over the 5D3

450
EOS Bodies / Re: EOS 7D Mark II Test Camera [CR1]
« on: March 28, 2013, 08:30:11 AM »
In fact I wouldnt read much into it at all.  There are likely several different configurations running around.

If DR improvement is not mentioned it won't happen

This is just a quick CR1, probably leaked from a beta tester, doesn't mean much either way concerning dr/noise or af performance...

Quote
Video ‘stills burst’ mode 30/60 fps
I'm not sure what this means...are they suggesting that it will capture 30 fps in the full 21 MP RAW mode?

It means that the lv buffer is written as a hq-jpeg file as fast as possible (better quality than grabbing frames off a video). What resolution the file has depends on Canon's live view implementation, for example on the 6d it's 1816x1210 ... Magic Lantern can already save this, though only as one shot.

Pages: 1 ... 28 29 [30] 31 32 ... 48