December 22, 2014, 07:11:46 AM

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Messages - tron

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61
Lenses / Re: More chatter on an EF 11-24 F/4L coming soon
« on: October 24, 2014, 09:30:16 AM »
I would still miss a coma free 16-35 2.8L III for astrophotography...  :(

The reason being is that anything wider has a bulbous element which cannot be protected much from light (in contrast to a flat front elememt lens with a hood...

That and the need for a 2.8 aperture...

62
Lenses / Re: The 50 prime problem
« on: October 24, 2014, 09:28:38 AM »
From what I've been able to gather from a couple of years of net research and renting and borrowing lenses.  Nobody makes an EF mount 50mm prime that works very well, at least for my needs. 

I eliminate the Zeiss due to lack of autofocus.

The 50 L has focus issues at different distances

The EF 50 1.4 has poor optics and is fragile

The EF 50 1.8 is good for the price (hmmm maybe I should test that one again)

The Sigma classic 50 has autofocus problems

The Sigma 50 Art has autofocus problems

A fast 50 prime needs a very accurate and consistent autofocus system to take advantage of the shallow DOF.  It is frustrating that none of the manufacturers have risen to the challenge.  I don't know why it has to be so difficult.  I have money to spend, but nothing to buy.  :(
Out of all options the 50 1.8 seems the best !!!!!!!!!!!!!!

63
Lenses / Re: why there are no new L primes
« on: October 24, 2014, 08:36:31 AM »
Well there are no new L primes this year BUT there will be a new DO prime. Which looks very tempting even though I already have the 500II ...  ::)

64
EOS-M / Re: EOS M with Magic Lantern, shutter cannot release
« on: October 23, 2014, 04:35:12 AM »
You should ask this question to the ML forum too...

65
Lenses / Re: Night Sky
« on: October 23, 2014, 04:30:27 AM »
Hi Alexander / xxelis,

Rokinon 24 f/1.4
Rokinon 14 f/2.8

These 2 are the best lenses you can buy for wide angle astrophoto. Forget the canon 1.4.

what is so bad about the Canon 24mm f/1.4? The price tag, or more?

Regards,
Mattias
This is wrong about the Canon 24 1/4

http://www.lenstip.com/245.7-Lens_review-Canon_EF_24_mm_f_1.4L_II_USM_Coma_and_astigmatism.html

COMA!

66
Lenses / Re: Travel gear thoughts...
« on: October 22, 2014, 12:56:17 PM »
Getting just 16-35 and 70-300 will only result of changing lenses frustratingly often.

67
Third Party Manufacturers / Re: Nikon 750D real world review
« on: October 20, 2014, 08:27:24 AM »
Quote
The D750 isn't any better then the 5D3 at high ISO.
Actually, it is at least 2/3 of a stop better. I sold my 6D and several L lens, about 2 weeks ago, and purchased the D750. The D750 is cleaner at high ISO's than my former 6D was, by at least 1/3 or so of a stop. I can push high ISO images much better with the D750 than I could with the 6D.

Still trying to figure out which Nikon lens are worth a crap, most of the Nikon primes are slower to focus than the Canon counterparts.
You sold your 6D and L lenses for 1/3 or so of a stop? :o

And now you are trying to fgure out which of the slower focusing Nikon lenses are at least worth a crap?  :o :o

+1000

now now chaps he actually sold it for 2/3rds of a stop
The comparison was with 6D not 5D3. But even if we take "at least" into consideration we may be talking of a 1/2 stop difference... Questions remain...

68
Lenses / Re: Travel gear thoughts...
« on: October 20, 2014, 08:05:40 AM »
Usually I travel light:  2 5DMkIIIs, 24-70 2.8 II, 16-35 f/4S IS, 70-200 f/2.8L IS II, 300 f/4L, 500 f/4L IS II, 17TS-E, EF1.4XIII, EF2XIII, 14mm 2.8L II, 2 tripods and a flash. 

OK I am joking!   ;D ;D ;D

I would take one 5DMkIII, 16-35 f/4 IS, 24-70 2.8 II and 70-200 f/4L IS

You see? Now the above setup seems light!!! ;D

If I had to reduce the setup more I would remove the 70-200 f/4L IS and I maybe I would replace the 24-70 with the 24-105 L (not 100% sure though...)

Finally, if I had to take one lens it would be a dilemma between 24-70 2.8 L II and 24-105 f/4L IS...

69
Third Party Manufacturers / Re: Nikon 750D real world review
« on: October 20, 2014, 07:24:10 AM »
Quote
The D750 isn't any better then the 5D3 at high ISO.
Actually, it is at least 2/3 of a stop better. I sold my 6D and several L lens, about 2 weeks ago, and purchased the D750. The D750 is cleaner at high ISO's than my former 6D was, by at least 1/3 or so of a stop. I can push high ISO images much better with the D750 than I could with the 6D.

Still trying to figure out which Nikon lens are worth a crap, most of the Nikon primes are slower to focus than the Canon counterparts.
You sold your 6D and L lenses for 1/3 or so of a stop? :o

And now you are trying to fgure out which of the slower focusing Nikon lenses are at least worth a crap?  :o :o

70
Third Party Manufacturers / Re: Nikon 750D real world review
« on: October 20, 2014, 06:56:47 AM »
mabye, but i often wish i could somehow get just 1-2 stop more DR out of my canon RAWs.
would not give me a proper exposed outside but made things way better.
it´s seems nikon can do that without a problem.

then look at the 5D Mk3 picture in the review, they are unusable.

Have you tried MagicLantern's DualISO?

Use of ML can damage your camera and they say so. It is not something that just "anyone" or "everyone" should use.
Sure, and no software manufacturer accepts any liability for damage done.

But, do you have real example or you just copy what they say ?

Having said that it is better to have more DR from the start.

71
EOS Bodies - For Video / Re: IS on when filming on tripod?
« on: October 20, 2014, 06:29:22 AM »
I've shot some long exposure scenes that were absolutely ruined by having IS turned on with my 70-200 2.8L IS II lens :(.  I wouldn't trust it at all, even if it claims to have tripod detection.

The effect must be different with video vs photo. I've filmed a lot on a tripod with that lens, and never saw a problem with the video. I have seen problems on long exposure photos though. And I've seen problems with the 24-105 when IS is on using a tripod. Also the 35 f/2 IS has never given me a problem with IS on.
The issue is with speeds of many seconds. If you are shooting video with say a 1/50 speed then it is much different.

FYI the instructions in lens booklet (70-200 f/4 IS) was to turn off IS in Bulb mode. Shooting many seconds even without Bulb mode is similar...

72
EOS Bodies - For Video / Re: IS on when filming on tripod?
« on: October 18, 2014, 07:23:29 AM »
I've shot some long exposure scenes that were absolutely ruined by having IS turned on with my 70-200 2.8L IS II lens :(.  I wouldn't trust it at all, even if it claims to have tripod detection.
+1 Same with 70-200 f/4L IS. It had to turn it off to remove blur in a few seconds tripod shooting.

73
The following is my kind of summing up the pros and cons:

birds: 7DII unless in very low light conditions in which case 5DIII

action: 7DII or 5DIII depending whether you are focal length limited or not

astro: 6D maybe a little but how much less noisier is it?

landscape: 6D,5DIII

portraits: 5DIII (the AF system for off center focusing in an eye beats 6D)

night and weddings\events photography: 6D,5DIII practically equal

I do have a 5DIII and after I sold my 5DII I was thinking about a 6D until I thought:

1. I will always try to decide which camera with which lens. Since you are thinking 2 different
   type of cameras (1 FF, 1 APS-C) you will possibly do not have such dilemmas

2. It is nice for both cameras to be exactly the same in handling/buttons/menus/capabilities

But maybe apart from an addon in the joystick in 7DII I guess handling will be the same.

Still I didn't regret my 2nd 5DIII. I believe that no matter what you choose, you will enjoy your new camera(s).  :)

74

how many have used flash (even more shot with a speed higher than 1/250?)

How many doesn't matter - want to fill the shadows in even one picture with some distance to the subject?

But if you want to think about numbers it's the same idea as the "they took sports pictures w/o autofocus"-fallacy. Rather ask: How many opportunities were missed because of technical limitations?
Exactly! RX10 has many limitations in that part! (sports)

75

 Flash Sync Speed: HSS is supported on many cameras/flashes combinations


HSS eats power like crazy. You loose three quarters just for turning it on, and then the output stays constant in relation to the ambient light.
The leaf shutter otoh sets the target aperture, giving you a 4-5 stop advantage. Contrasting to HSS you also benefit from ISOs above base sensitivity. You couldn't replicate that with 600RTs because the control system can't handle as many units as that would require. Not to mention the logistic challenges, or the implications when not relying only on speedlights.
You'd need at least 100kg worth of speedlights  and batteries to match a single, easily backpack transportable, Move1200 - just for perspective. And that doesn't include stands or clamps. For B1s it works out similarily.
Even so how much is flash used by ... travel photographers? If you browse his site's photos

http://bobkrist.com/photography/

how many have used flash (even more shot with a speed higher than 1/250?)



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