Wow, thanks for the reminder Handruin. Crazy to think that I've been doing this camera stuff for so long and am still awful at it.
Awful at what, technical or artistic?
Wow, thanks for the reminder Handruin. Crazy to think that I've been doing this camera stuff for so long and am still awful at it.
Technical. I haven't even bothered to start on the artistic.
Technical. I haven't even bothered to start on the artistic.
Every time you get some wild idea for a super-complicated engineering solution, think what would a real photographer do with normally available equipment.
Big advantage of being on that boat 20+ mile offshore was that there was very little light pollution.
Big advantage of being on that boat 20+ mile offshore was that there was very little light pollution.
View attachment 948
How are you guys getting the image to show in the post?
Big advantage of being on that boat 20+ mile offshore was that there was very little light pollution.
The big disadvantage is that unless the boat sank in shallow water, it's not exactly stable. :rofl::rofl::rofl:
Nice moon shot.
There may be a way to get your image to show directly when you upload your image to the Storageforum server but I don't know how. Plus to reduce server load, use an image hosting site.
Create a free acct with postimage.org you only need an email address. Then you can upload pics to them and they provide various links. Super simple interface. Then for each pic you can...(see pic below) click the option they provide and paste it into your post here. Postimage adds a second link to your pic to advertise postimage but you can just delete it.
I use the windows Snipping Tool to cut down on size or crop or whatever and upload that. Simple.
Thanks for that. I have image hosting elsewhere, but have avoided it due to the additional effort (4x the work of uploading to the forum? 10x?). I was hoping for a simple modification to the tag.
Wow that is a big lens. Wouldn't work for me as I don't think I can handhold 500mm @ F5.6 at any reasonable ISO. 400@F4 is enough of a challenge.
Your 100-400mm is f/5.6 @ 400mm.
I stand entirely corrected. f/5.6 it is. And I do have issues hand-holding, but I shake quite a bit.
At your age, you are able to hand-hold a much bigger lens than the 100-400. Easily.
Don't buggerise about with Snowhiker's under-exposure trick, it doesn't work. (Sorry Snowhiker.) The physics are quite clear on this. You'll get at least equal results using one extra stop of ISO, and in most cases better. Your camera is pretty smart: it is good at getting all possible detail out of any given exposure. Don't try to second-guess it, it is smarter than you are. Let it do its job.
A refinement: the intermediate ISO stops are not "real" insofar as they are simply pushed versions of the real ISO stops. ISO 500 on a 7D, for example, is actually ISO 400 pushed a bit by the camera's own logic. (I.e., the same as Snowhiker's method only it's the camera itself doing the pushing, which is usually better 'cause the Canon software is smarter than you are.) ISO 640 is actually ISO 800 pushed in the other direction. And so on. Only the major stops (100, 200, 400, 800, 1600, 3200, & etc. in most Canon cameras, Nikons are a bit different) are real. The others are interpolated. You get better results using the one-third up interpolated stops than the one third down ones. Assume you are at ISO 400 and need more. Go to 500 ISO: you get almost the same noise you get at 400 (because you really are at 400, the camera is pushing it). Need more? Don't bother going to 640. 640 is actually 800 reverse pushed. You might as well go straight to 800 and be done with it. Press on up to 1000 if you need it, then go straight to 1600. And so on. Disclaimer: this is true for the cameras I own and have owned. It may or may not be true for the latest models. Send me a few grand and I'll buy a 5D IIISR and test it out for you! No trouble, anything to oblige. Better send enough for two, just in case.
The old 100-400 (you do have the old one, I assume) is indeed ancient, but as Snowhiker says the IS is remarkably good even so. Monopods work brilliantly (as he says). I've never got the habit of using one - full-on tripod or hand-held for me, don't even own a mono anymore - but do as I say not as I do. I have many friends who use them with great success.
Oh, and grip. Grip matters a lot. Get the left hand well forward on the lens. Within the bounds of comfort (comfort matters because if you stretch too far you shake more), the further apart your hands are the better. Think about the physics of it: the problem is angular movement of the lens. Even a tiny 1mm vertical movement (horizontal the same but let's keep it simple) at the pivot point of the lens is magnified by the distance to your subject. At shooting distance, 1mm lens movement turns into maybe 300mm on the subject. Massive blur! Assume that you are getting that 1mm movement holding the lens 100mm away from the camera body. (I.e., left hand 100mm in front of the body.) Now move your left hand outwards close to the end of the lens. On an extended 100-400, your hands are now ~ 300mm apart: you still have the same 1mm vertical movement, but now it is pivoting three times further away from the camera body, which cuts the on-subject blur distance from 300mm to 100mm. That's worth having! In other words, what you are doing by getting your hands further apart is reducing the "shake leverage" distance. It has the same practical effect as shooting with a 133mm lens instead of a 400. I normally hold a 100-400 (or the 500/4 for that matter) right at the end of the lens proper, just where it joins the hood.
But ... :scratch: I suggested DD underexpose his shots (aka bump up the ISO) a bit to get a faster shutter so shots won't be effected by image shake and you say that trick won't work. Then you describe doing the same thing? Go from ISO 400 --> 500, but if you need more just go to 800, then 1000, etc.
And I'm late for work! Later.
I have the battery grip, but don't use it that often. Most of the time I walk around with a 24/1.4 (quite small) and the battery pack adds considerably to the weight.
And I'm late for work! Later.
Not quite the same thing, Snowhiker. The two processes are different. Let's follow them through:
(a) Underexpose and push it in post
- Fail to provide the optimum amount of light to the sensor. (You have to do this, otherwise you'd just use a faster lens or a longer exposure in the first place.)
- Gather signal data plus shot noise. (All images of any kind contain shot noise. It is a constant dictated by the quantum nature of light. But it only becomes noticeable when the signal is low.)
- Amplify this result (including the noise) and read it out. In doing this, you are adding read noise. Again, this is inevitable.
- Amplify the result in post (one again amplifying both the shot noise and the read noise).
(b) Boost the ISO
- Fail to provide the optimum amount of light to the sensor. (Same as (a).)
- Gather signal data plus shot noise. (Same as (a).)
- Amplify this result more than in (a) (once again including the shot noise) and read it out. In doing this, you are adding read noise.
- No further amplification required. Notice that we did not amplify the read noise, only the shot noise.
In general, shot noise is more significant than read noise. Nevertheless, it is a factor we are better off not amplifying.
The second factor to consider is the quality of the amplification. To what extent is it, and the associated noise reduction, able to be fine-tuned to the particular camera? The camera's own logic is best at this because the engineers can (and do) tweak it to work in an optimal way with their particular hardware.
The third factor works against factor 2. This is the machinery you use to do the processing. Although the camera itself is better tweaked, and camera DSPs are very powerful indeed these days, they are nevertheless nothing like as powerful as even a very small general-purpose desktop computer. At this point we are really talking about noise reduction software, we have left the basic image capturing discussion behind and are onto another topic.
And I'm late for work! Later.
My 5DsR fell on the asphalt, bounced, rolled down the hill and then was stopped by a rock.
I'll reply to some threads later.
Bummer.
This has curbed my enthusiasm just a bit. Gonna wait till all day one issues are resolved and a few test results come back.
The 80-400mm f/4.5-5.6G is expensive and I don't need half its range. Very good IQ.
The 300mm f/4E PF is semi expensive but doesn't have as much reach. Excellent IQ.
The 200-500 f/5.6E has AF issues from the get go. Unknown IQ.
Come on Nikon. Get your SH*T together.
Shot noise Vs. Read noise? Shot noise is introduced because sensor isn't getting the light it needs, while Read noise is the amplification of the sensor data?
Blurry pics caused by image shake (for whatever reason) are worse (generally) than sharp images with a bit of added noise correct?
Ways to increase shutter speed. 1) Spend big bucks for faster a lens, 2) Increase ISO, 3) Underexposing image at shutter release then fix in post. How would you attack the problem? Obvious solutions such as shoot only in bright light and use a tripod will solve the problem. But if those fixes aren't available or viable what steps can be taken to capture better, sharp images.
It's an interesting discussion Snowhiker; my pleasure to be a part of it.
He already has a good Sony sensor with low noise, so the only significant improvements would be maybe a D4s or the super-sensitive 12MP A7 bodioes.