Soldato
50mm f1.8 turned up so heres my complete collection for now.
The "New Gear/Willy Waving" thread
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Soldato
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- 10 Mar 2006
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One of the things I didn't realise about DSLRs, in reference to BruceLee's post, is how much you have to stop down (or up? which is it? 
) the aperture to get whole scenes in focus.
I've noticed on my 70-200mm 2.8 that not only is it much sharper at 5.6 vs 2.8, but even 5.6 still gives quite a shallow depth of field. I was opening it right up until recently and then suddenly a lightbulb came on.
) the aperture to get whole scenes in focus. I've noticed on my 70-200mm 2.8 that not only is it much sharper at 5.6 vs 2.8, but even 5.6 still gives quite a shallow depth of field. I was opening it right up until recently and then suddenly a lightbulb came on.
Depth of field is in essence related to sensor size, aperture, focal length and distance to subject, and most lenses are at their sharpest stopped down, which is what you have noticed
I have an Android app for calculating depth of field for when I am out and it's interesting to see DOF for various lenses.
I have an Android app for calculating depth of field for when I am out and it's interesting to see DOF for various lenses.
Soldato
Depth of field is in essence related to sensor size, aperture, focal length and distance to subject, and most lenses are at their sharpest stopped down, which is what you have noticed
I have an Android app for calculating depth of field for when I am out and it's interesting to see DOF for various lenses.
If you want to calculate the actual DOF, then you need to plug in the above factors into the equation like you have done. However it would be a little misleading to say that the focal length itself affects DOF. At the same subject magnification a 24mm lens @2.8 will have the same DOF as an 85mm @ 2.8. Perspective however is very different.
^^^
yep, the key change is the perspective, which is why relatively slow aperture but longer lenses can still produce very nice Bokeh since a smaller FoV of the background is project on the photograph, while wide angle fast primes tend to compress a wide FoV of the background creating harsher Bokeh. That is why an 85mm @1.4 looks to have a shallow DoF than a 24mm f/1.4 for same subject magnification, but the true DoF is the same, the 85 will tend to have greater desperation of the subject from the background and less specular highlights and funk going on.
yep, the key change is the perspective, which is why relatively slow aperture but longer lenses can still produce very nice Bokeh since a smaller FoV of the background is project on the photograph, while wide angle fast primes tend to compress a wide FoV of the background creating harsher Bokeh. That is why an 85mm @1.4 looks to have a shallow DoF than a 24mm f/1.4 for same subject magnification, but the true DoF is the same, the 85 will tend to have greater desperation of the subject from the background and less specular highlights and funk going on.
Soldato
Using a long lens would also be a good way to get good background separation and bokeh with group shot's etc. but still keep everyone in focus.
Soldato
Yes, that's right.
Well changed now...I returned the F4L IS for the 2.8 IS II
Also got some more small bits and pieces
Caporegime
Well, my dad went out and bought a 4/3 camera without telling me...I thought he was only browsing the Argos catalogue !
Soldato
pff instagram
Soldato
just got this to replace my 16-35 f/4. Will probably miss the VR on the 16-35, but 14mm is just so nice and wide and the distortion on this badboy is much less pronounced than on the 16-35..
Got 'the trinity' now. Next stop is almost certainly a fast wide prime. Probably the 28 1.8, unless i can get a deal on a 24 1.4...
Got 'the trinity' now. Next stop is almost certainly a fast wide prime. Probably the 28 1.8, unless i can get a deal on a 24 1.4...
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Nothing particularly impressive, but I just received a knockoff battery grip and 2 batteries for my 550d, all of which only cost 25 quid (I couldn't believe it). The quality is bang on, and I never realised how comfy they were. Looking forwards to making use of the extra battery life with some timelapses, and being able to use live view as much as I like!
Soldato
Yeh I always like to use a grip if I can, it's way more comfortable imo...
I know, I wish someone had explained it to me sooner! Also, I find I am less shaky when shooting landscape and holding both grips (assuming I'm using AF). Does make my bag a bit of a squeeze, but nothing so bad that it'd bug me.
Whats the deal with importers on warranty for Flashes and triggers? (digital rev)
The 600RT Speedlite can be had for £389 now which is low enough for me to now buy. I know the warranty on Lenses and Bodies I'm curious if this still has one year warranty?
I'm about to go away but as soon as I get back I will order one and the ST-E3-RT.
The 600RT Speedlite can be had for £389 now which is low enough for me to now buy. I know the warranty on Lenses and Bodies I'm curious if this still has one year warranty?
I'm about to go away but as soon as I get back I will order one and the ST-E3-RT.
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Soldato
Wrong thread, think this is for showing off your new gear not asking about perspective purchases!
Like that hasn't on every single page of this thread, speculation, advice and buying tips
Caporegime
Canon has a fixed priced policy on flashes, so even if it's broken, it won't cost "much", even if the whole thing melts itself.
The 580exii has a fixed fee of like £100.
Cheers Raymond that's not bad then even if they won't honour the warranty from digital rev. The saving on uk price is over £200 and £150 on the transmitter so worth the gamble.
I will get them ordered when I return from my hols, can't risk a delivery while I'm away after they left my 70-200 on the doorstep
Need to get some overtime in then for those automatic triggers on talk photography they have me intrigued
I will get them ordered when I return from my hols, can't risk a delivery while I'm away after they left my 70-200 on the doorstep
Need to get some overtime in then for those automatic triggers on talk photography they have me intrigued
Soldato
My new lens an Olympus 45mm 1.8. Got a lumix 14mm 2.5 coming as well.
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Caporegime
Cheers Raymond that's not bad then even if they won't honour the warranty from digital rev. The saving on uk price is over £200 and £150 on the transmitter so worth the gamble.
I will get them ordered when I return from my hols, can't risk a delivery while I'm away after they left my 70-200 on the doorstep
Need to get some overtime in then for those automatic triggers on talk photography they have me intrigued
That's Canon Elstree, Fixation gives free quotes (after you send in the unit), and then £70 labour plus parts.
Fixation could work out cheaper if it is a tiny capacitor, or works out to be as much as a new flash if something like the PCB blows.