September 02, 2014, 02:16:05 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 - koolman

Pages: 1 ... 3 4 [5] 6 7 ... 13
61
Lenses / Re: Another I need advise on a lens thread......
« on: August 12, 2012, 05:11:14 PM »
Gino: you have a mighty collection indeed. Like previous posts suggested, the 16-35 will give you superb UW you are missing somewhat.

UW is fun, and if money is not an objective, check out the 14mm L .

62
EOS Bodies - For Stills / Re: Canon 5dc, better than T1i?
« on: August 12, 2012, 05:07:46 PM »
I think your post expresses once again the real truth - that good photos are a first and foremost a function of the skill and imagination of the photographer. Sure it helps to have expensive equipment as well, but its mostly skill and talent you develop slowly over years.

I've seen awesome shots made with cheap cameras (I mean really cheap ! ) and plenty of boring stuff produced with state of the art.

If you view photography as a form of art and personal expression, it will put the importance of the tools into perspective.

63
Canon General / Re: Suggestions needed from the community
« on: August 08, 2012, 04:25:54 AM »
Hi,

I poked around your flicker for a few minutes. Lots of outdoor work - both wide and long.

I would suggest:

1) Sell the 28-135 your well covered by the other lenses and this lens is not wide on your crop.

2) Purchase Canon 10-22. This will give you wide/UW you are lacking.

For the "next step" I would suggest:

1) Purchase canon t2i - its cheap now and has the same sensor as the 7d.

2) Exchange your 70-300 for Canon 70-300 IS L.

64
EOS Bodies / Re: Understanding AF on the new 650d
« on: August 05, 2012, 03:36:28 PM »
Yes, the 650D is a decent step up from the 500D/550D/600D in terms of AF for stills.  The previous recent xxxD bodies have 9 points, only the center is a cross-type, and it's a single 'hybrid' cross, with one f/5.6 line and one f/2.8 line in a '+' shape, while the outer points are f/5.6 lines.  The 650D inherits the 60D's phase AF - still 9 points, but the center point is a dual cross, an f/5.6 '+' with an f/2.8 'x' superimposed, and the outer points are all f/5.6 crosses.  The f/2.8 lines are more accurate, because they have a wider baseline.

However, I should point out that the better AF itself may not solve the problem for your f/1.4 primes, for two reasons.    First, the xxxD bodies don't offer AF microadjustment (neither does the 60D, although the 50D does, else it's 7D and up). AFMA is especially important for fast primes, where the DoF is thin. Without AFMA, the only option for a front- or backfocusing lens is to send lens(es), and possibly body, to Canon.  Second, even with a perfectly calibrated lens, shooting a fast lens wide open using focus-recompose basically guarantees you a backfocused shot, due to geometry. So, if a new 650D plays nice with your lenses (or you're willing to send to Canon), and if you use those outer cross-type points to AF, instead of focus-recompose from the center, then you should see sharp focus (as sharp as possible, at any rate - do keep in mind that lenses aren't at their sharpest wide open).

Hope that helps...

Thanks for elaborating Neuro !

Yes that was I was asking, basically if the 650d inherits the 60d's AF system.

I understand the problem with MF adjustments.



 

65
EOS Bodies / Understanding AF on the new 650d
« on: August 05, 2012, 06:08:29 AM »
Hi,

I currently have the 550d rebel. I'm happy with it, and the IQ is very nice for the price.
My only gripe is the auto focus. I use the center point only and re-compose.
However, even this method, seems to be both somewhat slow, and not tack on accurate. I find my fast primes (50 1.4, 35 1.4) lacking in AF accuracy and speed.

My question is: Would the 650d give me any advantage here, as far as AF accuracy and speed, using its center point only ? I understand that even on the 550d the center point is extra sensitive ? On the other hand, I seem to see on some websites an explanation showing the center point of the 650d even better (like the 60d) ??

Can one of our tech oriented seasoned members clarify this for me?

Is there ANY real advantage for stills - moving from 550d to 650d (another question) ?

66
Lenses / Re: Zeiss 2/25 or 2/35 for everyday use in APS-C?
« on: July 26, 2012, 08:55:04 AM »
I use the 50mm macro planar f/2 on my t2i. I received the lens as a gift. Its very sharp and contrasty. I find the electronic AF confirm quite useful, for all but close up maro work, where I use the LV.

This lens is unique, and can be used as a still life, macro, and portrait lens.


67
Portrait / Re: My photos look so dull
« on: July 18, 2012, 06:37:09 AM »
As other are showing:

1) Improve WB accuracy !

2) Make sure to pay attention to the direction of the light. Shooting with light source above (like your shots) can produce shady shots

3) Exposure and PP

68
Site Information / Re: In Sympathy for CR Guy
« on: July 18, 2012, 06:32:49 AM »
May G-d send you condolences on your loss. We are all here for you.....

69
Portrait / Re: What did I do wrong?
« on: July 18, 2012, 03:48:02 AM »
For group shots, where people are standing at varying distances, I would use F/2.8 - F/4 only.

F/1.4 is for a carefully focused isolation shot of one person.

70
For those seeing no difference between crop and ff:
- difference exists, and it's huge: in DoF and DR/IQ.

If you want to start shooting fashion, you must have gear according to the fashion level you want to shot. If it's some school stuff, then it's Kiss camera. Going to pro means going to (at least) FF.

I would suggest kiss+85mm as starter level and 5dm2 or 3 + 100mm IS/70-200 f4 is as semi-pro/pro.

Nobody said there is "no difference between crop and FF". The question was advice on a logical step up from a p&s on a budget. Sure for super quality on a full pro level the sky is the limit. For a person making their first step in the DSLR word, the t2i is a very good option.

71
Here is my 2 cents. For shooting in a well lit area on a tripod - the t2i should be more then enough. I would invest more in the glass then the body. The canon 85mm on the t2i - should be fine, as you need to stand further away and have the magnification of a 135mm lens.

So t2i + 85mm = < $1,000.

I would add the 50mm 1.4 - as it is also an excellent portrait choice.

So you can get the whole set for $1,500. Save your cash, and add as needed.

72
Lenses / Re: Patent: Canon EF 35 f/1.4L II
« on: July 04, 2012, 10:09:25 AM »
How exactly do you read these patents when they come out? I see the aperture and the film plane, but what about the focal length? Is it apurture-FP? Is it the same basic concept in all modern lenses?

Focal length is the distance between is rear nodal point with the lens at infinity focus and the sensor/film plane.  Note that the rear nodal point is an optical point which depends on lens design, may not fall within the physical dimension of the lens.  Most telephoto lenses have the rear nodal point right behind the front element.

Can you please explain this in more detail - possibly with a chart or diagram ? What is the "nodal point" ? How does its position affect the distortion of the lens?

73
Capsule version - EF-S lenses project a smaller image circle, which covers an APS-C sensor but it too small for an APS-H or FF sensor.  The advantage is that a smaller image circle means smaller elements (in the case of wide angle lenses), easier to design lenses, and thus lower costs.  Most of Canon's EF-S lenses also have a short back focus (meaning a shorter physical length of the lens, Nikon and 3rd party lenses don't), which means a mirror larger than that for an APS-C sensor will hit the lens, so they designed the mount to prevent that from happening.

Thank you short, sweet, and to the point (as always) !

74
Lenses / Understanding the diffrence between FF and EF-S - Question
« on: June 20, 2012, 07:24:23 AM »
Can some of the more tech oriented members, please explain in layman's terms, what the difference is between FF and crop lens mounts, advantages and disadvantages of each type of mount, why crops can take EF and FF cannot take EF-S? Thank you. I have heard/read all kinds of partial descriptions, but still don't have a clear picture.

75
Lenses / Re: Battle of the 50mm's (1.2L , ZE 1.4, ZE 2.0)
« on: June 19, 2012, 03:42:15 AM »
I own the Canon 50 1.4, and the zeiss 50mm macro f/2 (got it as a gift) used on my t2i.

The zeiss gives a unique type of 3d'sh shot. Its super sharp even wide open. I use the focus confirm (which actually works!) or LV.

You need a patient subject (model) to sit still for a MF portrait. The macro also close focuses insanely close and is fun for all kinds of still life photos.

I tried the 50L - and even though its nice, I could not see it offer more the $1k more then the 1.4

zeiss macro planar f/2 + t2i


Pages: 1 ... 3 4 [5] 6 7 ... 13