October 25, 2014, 08:23:17 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 - tron

Pages: 1 2 3 [4] 5 6 ... 125
46
Lenses / Re: Tamron 15-30mm f/2.8 Full Frame Lens to be Announced Tomorrow
« on: September 12, 2014, 08:15:29 AM »
From the images, it looks like a built-in hood with slightly bulbous front element. That's a bad news for filter users :(
+1 Exactly! Add 1mm and you get a 2.8 zoom lens that takes filters!
I can only assume, that filter users will opt for 16-35/4 anyway, as you usually use filters on tripod at f/8+ and don't care much for the speed of the lens. Conversely, action shooters could not care less about filters and will go for this lens, if it proves to be better than C16-35v2 or T16-28...
Landscape Astrophotographers though will either continue using a 14mm which has a bulbuous front element too or will opt for a 2.8 zoom lens with no bulbuous element for better protection (from light) via a hood. At least this is what I need for that kind of photography...

That, and a coma free lens ...  :)

47
EOS Bodies / Re: How does the reveal of the final 7D2 specs make you feel?
« on: September 12, 2014, 07:50:21 AM »
who cares about the 7D MK2.... what about the 5D MK IV?  ;D
+100000000000000000000000000000000000000000000000000000  :)

48
Lenses / Re: Tamron 15-30mm f/2.8 Full Frame Lens to be Announced Tomorrow
« on: September 12, 2014, 07:45:13 AM »
From the images, it looks like a built-in hood with slightly bulbous front element. That's a bad news for filter users :(
+1 Exactly! Add 1mm and you get a 2.8 zoom lens that takes filters!

49
Third Party Manufacturers / Re: Nikon D750 to be Canon 5D3 competitor?
« on: September 07, 2014, 10:01:50 AM »
- similar number of AF points, suggesting similar AF capability

That makes sense because as we know, all AF points are the same – only the number of them matters.  Line vs. cross vs. dual-cross, f/5.6 vs. f/4 vs. f/2.8 baseline accuracy, spread across the frame, those don't matter at all.
This time there was no coffee at my desk so there was no risk of destroying my laptop  ;D  ;D  ;D

50
Lenses / Re: List of rumored lenses
« on: August 27, 2014, 11:36:07 AM »
The rumors need to start materialising as lenses. The newer cameras (before we even get to 45 or 85MP as been rumored here) such as the 6d show up the problems of the EF-17-40mm f4L,  EF24-105mm f4L both of which have pronouced chromatic abberations at 17mm and 24mm respectively. As sensors improve the faults of lenses masked at 8, 10, 12 or 18MP now show up and this undermines the system ability to produce great results. Sigma have shown improvement are possible (so has Zeiss at a price) and still remain competitive to Canon pricing.

A 24-105 II L really would be nice, especially mated with a 100-400 II L combo. Very versatile!

+1 for the 24-105L II lens. This is the most versatile lens Canon makes.

Also, Canon- a 14-24 2.8 for under $2500 please.
Can I order my 16-35 2.8 III please ?  8)

51
On the basis that every time I post anything on this site I'm always wrong I say No chance  :-X
Then maybe you are wrong that you are ... wrong at every post  ;D

52
Software & Accessories / Re: CR2 files corrupted
« on: August 26, 2014, 04:34:25 AM »
You can try Rescue pro deluxe. It comes free with some SANDISK cards.

53
Landscape / Re: Beautiful sunsets
« on: August 26, 2014, 04:29:35 AM »
@jrista:  John this is a fantastic photo. Could you share some process details that lead to this result?

The HDR result was pretty simple. I imported to Lightroom, then selected all five for this set, right-clicked and chose to "Merge to HDR Pro in Photoshop..." When that was done, I chose 32-bit, and "Tone in ACR". I then tweaked things a bit in ACR, mainly exposure, a little bit of curves, applied a gradient (like a digital GND) to the top to bring out the blues more, did some brushing around the sun (just to deal with some posterization), and that was pretty much it.
Thanks for sharing  :)

54
Landscape / Re: Beautiful sunsets
« on: August 25, 2014, 08:38:29 PM »
@jrista:  John this is a fantastic photo. Could you share some process details that lead to this result?

55
Post Processing / Re: Post processing, coma removal
« on: August 25, 2014, 09:11:36 AM »
Coma test of Samyang 24mm 1.4

http://www.lenstip.com/330.7-Lens_review-Samyang_24_mm_f_1.4_ED_AS_UMC_Coma__astigmatism_and_bokeh.html

It is not coma free but it has much less coma than the Canon.

Reading though:

http://www.lenstip.com/330.11-Lens_review-Samyang_24_mm_f_1.4_ED_AS_UMC_Summary.html

I have some reservations(Quoting from the aboe lenstip link):

"Coma looks practically the same, no matter whether we use f/1.4 or f/2.0."
"Defocused diode images, positioned in the corner of full frame are practically the same by f/1.4 and f/2.0"

To sum up there is some doubt whether this is truly a 1.4 lens. Some findings are explained, some not.

56
Post Processing / Re: Post processing, coma removal
« on: August 25, 2014, 09:06:57 AM »
It wouldn't!

The choices are:  Peripheral Illumination, Chromatic Aberation  (R & B), Color blur, Distortion.

The other corrections are all controlled by the DLO slider, you can't adjust them individually like the ones you listed.
Do you have an example where coma is being corrected at post via DLO?

57
But, to tell the truth a new 100-400L would be an excellent companion to 7DMkii....

58
It is the year of the lens . . .

it´s still not clear to me if canon officially said that or CR guy...
Hmmm, let me put it that way: There is a CR3 that Canon DID NOT say it.

59
Post Processing / Re: Post processing, coma removal
« on: August 25, 2014, 07:25:29 AM »
I am thinking of Samyang 24mm 1.4 but it is not as wide as I would like plus, it is reported having decentering issues...

In addition, compared to my Canon 14mm 2.8L II the advantage is not 2 stops but 1 1/3.

The reason. With 14mm I shoot at 25sec in order to avoid star trails.
With 24mm I would shoot at 15 sec hence the 2/3rd stops less. So subtract this from the 2 stop difference and you have a 1 1/3 stop advantage.

Even so it is not bad but you still have to be satisfied by 24mm view of field. I personally prefer something wider...

60
Third Party Manufacturers / Re: D810 users are seeing spots
« on: August 21, 2014, 12:53:24 PM »
The 5DII problem has been solved via a firmware update (If I recall correctly 1.07). I remember this issue because solving it was a prerequisite for me to get a 5DII...

Now, to defend Nikon, if I had a D810 and I was doing a long exposure I wouldn't even think of using it at crop mode.

If problems can be solved in firmware and companies are willing to do so all is well.

Pages: 1 2 3 [4] 5 6 ... 125