Reviewing images outdoors
A natural density filter is a good way to reduce ghetto shutter speed in order to get to the flash sync speed when they are as low as they are with our kit, An alternative is a circular polariser.
www.chrismillsphotography.co.uk
" A Hangover is something that occupies the Head you neglected to use the night before".
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K1 - Sigma 85mm F1.4, Pentax DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8
Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8
K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
I needed to keep the shutter speed at 1/180th to use a fill in flash...
Which flash do you use? I recently discovered some sync faster than that (thanks Nigel!) To achieve this the flash needs HSS (high speed sync.)
..... in order to get to the flash sync speed when they are as low as they are with our kit, An alternative is a circular polariser.
We've got 1/180th (aps-c) and 1/200th (K1) max sync speeds. Most flash books I read refer to 1/200 - 1/250th as the common example, so we are only a very little 'slower'. I think even the top Pro models from Canikon have a max figure of 1/300th. I admit that would be handy, but in a real situation then I'm not sure the difference between 1/180th and 1/250th would be too critical? Ok, so it would allow a half stop wider aperture, or half stop darker background.
But in any case, there have been a number of members here over the years who have been wanting a shorter max sync time.
By the way Chris, yes, I think a Polariser is a good idea .... it should add depth and colour to the backgrounds in many situations, as well as drop the exposure by a stop (or two?).
A quick look online showed me that the 5D Mk IV (£2600) has max of 1/200th, and the 1D X (£3800) 1/250th ....
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Also HSS isnt that great when your trying to overpower the sun I find...
Never actually tried a polorizer. I'll give that a go..Thanks for the tip. Chris....
Stuart..
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1973 posts
13 years
Manchester
I wanted to shoot my lens wide open. f2.8. to obtain maximum Depth of field. Darken the exposuer back to something Normal using a variable ND filter. As I needed to keep the shutter speed at 1/180th to use a fill in flash...
Stuart..