Pixalo Photography Community

Go Back   Pixalo Photography Community > Photography Forums > General photography questions and answers

General photography questions and answers: Discuss What would be best?...Bear with me Canon 20D. Two lenses,Canon 17-85 IS and 17-40L. Handheld. Available light suggests an exposure of 1/8th sec ...
Welcome to the Pixalo Photography Community. As a Guest you are free to browse the site, but see what extras you get as a Member here.


Reply
 
LinkBack Thread Tools Display Modes
Old 11-03-2008, 23:00   #1 (permalink)
Forum Regular
 
Join Date: Nov 2006
Location: Scotland
Posts: 1,418
water will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
What would be best?

Bear with me
Canon 20D.
Two lenses,Canon 17-85 IS and 17-40L.
Handheld.
Available light suggests an exposure of 1/8th sec @ F11 at 17mm.
Thanks to IS it is possible to successfully take a shake free picture at those settings on the 17-85.
With the 17-40L there are 2 options:either open the aperture two stops to F5.6 for a shutter speed of 1/30th sec or :
Leave aperture at F11 and bump up ISO to 400 to get the 'safe' shutter speed of 1/30th sec.
I prefer not to have to carry a tripod if possible so would the ability to use F11 with the 17-85 give a better image than the F5.6 on the better glass of the 17-40L? [or ISO100 as opposed to ISO400].
On an A4 print would I even notice the difference?.
Just ignore this if it's too 'whacky'
__________________
Cheers,
John.
water is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-03-2008, 23:23   #2 (permalink)
Forum Regular
 
towershot's Avatar
 
Join Date: Jan 2008
Location: Nr Blackpool ,Lancs, England.
Posts: 540
towershot is on a distinguished roadtowershot is on a distinguished roadtowershot is on a distinguished road

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: What would be best?

I would say use the ISO John, at 400 on a good camera and A4 IMHO it would be better than a wide aperture. Now I have started,some- one else will give a different answer But keep it friendly, my rottwieler hasn,t been fed yet.
Said I would treat Her to dinner tonight.
towershot is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-03-2008, 23:30   #3 (permalink)
Pixalo Crew
 
Markulous's Avatar
 
Join Date: Jul 2006
Location: Peak District
Posts: 19,640
Markulous is a jewel in the rough
Markulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the roughMarkulous is a jewel in the rough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: What would be best?

Try 1 @ 1/8, 1 @ f/5.6 and 1 @ ISO400!

I'd probably try and keep to 1/8, then ISO400, followed by f/5.6 - and I eat rottweilers for breakfast!
Markulous is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-03-2008, 23:50   #4 (permalink)
Forum Regular
 
VikingPhotography's Avatar
 
Join Date: Jul 2006
Location: Lahndahn!
Posts: 855
VikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of light
VikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of lightVikingPhotography is a glorious beacon of light

No Image editing
User's Gallery
Users Camera Equipment List
Re: What would be best?

Aside from the very valid point that Markulous makes, I'd like to suggest something that would be of help for not very much money at all: the GorrilaPod SLR Zoom is your friend (The lowest legit UK price I could find, BTW)

I picked one up a wee while ago for shooting in situations where I wouldn't be able to use a tripod and, more importantly, those occasions when I didn't want the hassle of carting one around.

Most of the time when you're out and about you'll be able to find something that you can wrap the pod around in order to get the shot you want. Coupled with a remote cable release, you should be able to get shake-free pictures at any exposure level.
VikingPhotography is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-03-2008, 23:53   #5 (permalink)
Forum Regular
 
Join Date: Nov 2006
Location: Scotland
Posts: 1,418
water will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: What would be best?

Quote:
Originally Posted by Markulous View Post
Try 1 @ 1/8, 1 @ f/5.6 and 1 @ ISO400!

I'd probably try and keep to 1/8, then ISO400, followed by f/5.6 - and I eat rottweilers for breakfast!
Should have explained,I don't have either lens!.What I am trying to determine is which one would best suit my needs.The 17-85IS would definately be more 'handy' and I guess would also give better quality than than my current Sigma 18-125,regardless of Image Stabilisation.I do think I try to handhold at too slow shutter speeds,not wishing to trade off aperture/ISO so IS is appealing.
water is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 12-03-2008, 00:13   #6 (permalink)
Forum Regular
 
Join Date: Nov 2006
Location: Scotland
Posts: 1,418
water will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: What would be best?

Quote:
Originally Posted by VikingPhotography View Post
Aside from the very valid point that Markulous makes, I'd like to suggest something that would be of help for not very much money at all: the GorrilaPod SLR Zoom is your friend (The lowest legit UK price I could find, BTW)

I picked one up a wee while ago for shooting in situations where I wouldn't be able to use a tripod and, more importantly, those occasions when I didn't want the hassle of carting one around.

Most of the time when you're out and about you'll be able to find something that you can wrap the pod around in order to get the shot you want. Coupled with a remote cable release, you should be able to get shake-free pictures at any exposure level.
An interesting gadget,I'm trying to imagine life with one!!
water is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 12-03-2008, 07:51   #7 (permalink)
Pixalo Crew
 
Join Date: Jan 2005
Posts: 19,250
Steve is just really nice
Steve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really nice

Image edit - ASK
User's Gallery
Users Camera Equipment List
Re: What would be best?

I don't have the 17-85IS but I do have a 20D and 17-40L. Whilst not a scientific answer I would say that I am completely happy shooting at iso 400 on the 20D and for prints at A4, as long as you exposed the shot correctly at the time it was taken, then the noise would never be visible. I honestly don't think twice about increasing the ISO up to 400 in situations that warrant it.

The correct approach to this is obviously use the lowest iso and your favoured Fstop regardless, and shoot of a tripod or stable surface if the shutter speed is to slow. Viking's suggestion of the GurrilaPod is a good alternative to a full size tripod and so is investing in some high quality noise reduction software for occasions when you need to really high ISO's, the final quality matters and you simply have no other options.

Another point to consider is are you really likely to be able to see any real quality differences between the 17-40L and 17-85IS when printed at A4 assuming all other variables are matched..ie exposure, focus, lighting, ISO etc? I would guess that the answer is probably no and the larger range of the 17-85 coupled with IS is definitely more flexible.
__________________
I can count all the way up to Potato.
Steve is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 12-03-2008, 08:35   #8 (permalink)
Forum Regular
 
Join Date: Nov 2006
Location: Scotland
Posts: 1,418
water will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enoughwater will become famous soon enough

Image editing O.K.
User's Gallery
Users Camera Equipment List
Re: What would be best?

Quote:
Originally Posted by Steve View Post
I don't have the 17-85IS but I do have a 20D and 17-40L. Whilst not a scientific answer I would say that I am completely happy shooting at iso 400 on the 20D and for prints at A4, as long as you exposed the shot correctly at the time it was taken, then the noise would never be visible. I honestly don't think twice about increasing the ISO up to 400 in situations that warrant it.

The correct approach to this is obviously use the lowest iso and your favoured Fstop regardless, and shoot of a tripod or stable surface if the shutter speed is to slow. Viking's suggestion of the GurrilaPod is a good alternative to a full size tripod and so is investing in some high quality noise reduction software for occasions when you need to really high ISO's, the final quality matters and you simply have no other options.

Another point to consider is are you really likely to be able to see any real quality differences between the 17-40L and 17-85IS when printed at A4 assuming all other variables are matched..ie exposure, focus, lighting, ISO etc? I would guess that the answer is probably no and the larger range of the 17-85 coupled with IS is definitely more flexible.
Yes,this gets to the nub of things.I now,after a long time and through observation of the images on the computer, realise one of the best ways to achieve a good image file is to get the exposure nailed, leaving as little 'tweaking' as posssible needing doing in Photoshop.Coming from someone who used slides I am puzzled as to why it has taken so long to sink in.I guess I thought Photoshop was some magic wand and could rectify mistakes at the taking stage with no cost to the finished result.It could also be my photoshop technique needs improving,something which is happening thanks to the tutorials and tips on Pixalo
water is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 12-03-2008, 08:45   #9 (permalink)
Pixalo Crew
 
Join Date: Jan 2005
Posts: 19,250
Steve is just really nice
Steve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really niceSteve is just really nice

Image edit - ASK
User's Gallery
Users Camera Equipment List
Re: What would be best?

It a very valid point and one of the first things that I noticed when I started out with digital. Many times because of the flexibility that post processing digital files afford us, we simple don't care to much about getting the correct exposure to begin with. How many of us regularly look at the histogram and think..."ahh it doesn't matter, its only a little under or over exposed, I'll recover that in PS"

The correct thing to think is that I have exposed that incorrectly, i'll make a quick camera setting adjustment and re-shoot it properly while I can. Forget all your technology improvements as far as better noise reduction and the very slight differences between two quality lenses, this one step can make huge, visible differences.

You can take comfort in knowing that everyone I know, including myself, still at times take the easy route and still rely on post processing though. Its hard to be disciplined all the time
Steve is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT +1. The time now is 20:39.


vBulletin Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
ReviewPost & PhotoPost vB3 Enhanced, Copyright 2003-2014 All Enthusiast, Inc.
SEO by vBSEO 3.3.0
Copyright © 2006 - 2017 Pixalo.com

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196