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Topics - Hillsilly

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Lenses / Excellent shorter lens with TC vs Average longer lens
« on: October 02, 2012, 07:42:22 AM »
Was just checking the Samyang site and see they've got an 800mm mirror lens and a 650-1300mm zoom.  A second hand shop near my work has a Meade 1000mm f/11 mirror lens for sale.  And I see a lot of similar lenses for sale on eBay.  A quick google search suggests the image quality from these lenses isn't great.  Unfortunately...it seems you get what you pay for.   

But my question is this: -

If you had a 300mm f/4, would your cropped image appear sharper than a cheap 1000mm+ lens?  What about a 300mm with a teleconverter or two?  Is there any point to buying a cheaper, longer lens?

Lenses / How are lenses measured?
« on: September 22, 2012, 04:01:36 AM »
Can anyone provide a simple explanation as to how the focal length of a lens is measured?  Where is measured from?  What makes a 17mm lens a 17mm lens?  What makes a 400mm lens a 400mm lens.  My initial thought was that if you held up a negative 400mm from your eye, you might get a similar angle of view to a 400mm lens.  But that doesn't seem quite right, and doesn't account for fish eye lenses etc.  A quick google search didn't shed much light.  Does anyone know?

EOS Bodies / Sensor Format
« on: July 15, 2012, 12:37:37 AM »
After a rather stressful printing exercise trying to make 36x24 images fit nicely into 8x10 frames, is anyone else hoping the new canon mirrorless cameras will have a more printer friendly sensor ratio?   

Why do shops favour 8x10 frames with very little choice in the 8x12 range?

Speedlites, Printers, Accessories / 430EX II Price Drops
« on: June 15, 2012, 12:42:15 AM »
I've been noticing the recent price drops on the 430EX II.  Do you think this is a sign that the 440EX-RT is imminent?

Lately, I've been trying to take wildlife photos in the dark using a radio trigger to power some non-ex flashes.  I'm generally shooting subjects about 20m away.  It's too dark for my camera to auto focus so I'm manual focusing or pre-focusing on a particular spot.  But I'm not getting many keepers.  My eye sight isn't the best and I just can't focus accurately or fast enough.

What can I do?

My first thought is to pick up some Canon flashes.  I understand that the AF Assist of the ST-E2 isn't very powerful and the 580EXii is better and has more features as a master controller anyway.  Therefore, I'm thinking I should pick up a 580EXii (or maybe a Metz 58 AF-2) to use the AF assist, and use this to control a couple of slaves.  Does this sound sensible?  I've heard that the AF assist on a 580EXii might extend to about 20m.  Does that sound right?

Realistically, I'm not going to pick up two or three 600EX RTs.  But given that the price difference between the 580EX and the 600EX isnt that big, should I just go for one 600EX and use this as the master controller now and future proof my system?  I assume 430EX-RTs aren't that far away?

The ST-E3 lacks AF assist.  Am I right in thinking that it won't trigger the AF assist on a 600EX (and even if it could, the lines / grid wouldn't necessarily match my AF points anyway)?

Am I missing something?  Is there a simpler or better way to obtain improved night time AF performance?

I'm thinking of picking up a 580EX ii.  But being a careful purchaser, I thought I'd look around and see what else is out there.  The closest competitor seems to be the Metz Mecablitz 58 AF-2.  The price difference isn't that big.  Just wondering if there is any compelling reason not to choose the Canon flash?

Is there anything else out there to consider? The 600EX-RT is probably a little too pricey for my occasional level of use.  I'll also use the flash on a variety of different cameras so an "auto" mode (External Automatic Flash Exposure in CanonSpeak) is desirable, which rules out the 430EX II.

Canon General / Truth in photography
« on: February 02, 2012, 01:30:39 AM »
I've been following the “Debunk this Peter Lik picture…PLEASE!!!” thread closely for the last few days, and I'm surprised at the amount of interest it has generated.  I started following it because I like to reverse engineer things to work out how they were done.  Otherwise, I’m not too concerned if it is actually a combination of multiple images with significant post production.  If it is art, I feel that it should be able to stand on its own and the “behind the scenes” activities are largely irrelevant.  But many people think differently.

So, I'm curious.  With photography in general….

Do you feel genuinely upset and angry when a photographer portrays a photo as something it’s not?  If so, why does this get you so worked up? 

If a photo is actually a combination of several photos, but the photographer implies that it is a single, unaltered image, do you consider this unethical?

Do you think photo buyers really care about the effort that went into producing an image?  If so, do you feel that an image with less manipulation is of greater substance than an image with more manipulation?  Or is this irrelevant provided that the photographer doesn’t mislead anyone? 

Tell me your thoughts. 

EOS Bodies / 5Diii vs 7Dii (FF vs APS-C)
« on: October 27, 2011, 10:33:41 PM »
Hi.  I'll probably pick up a new camera next year, and am weighing up the pros and cons of APS-C vs FF.  I'm curious - why is there so much interest in the 5Diii compared with a 7Dii?  A 5Diii with 7D build, AF and speed would seem to be many people's dream come true.  I appreciate many of the benefits of FF - shallower depth of field, less noise at higher ISOs etc.  But with all of the hype, you start to think that the only benefit of the APS-C sensor is the lower price and 1.6x crop for longer lenses, but for everything else it is an inferior product.   If a 5Diii was virtually identical to a 7Dii except it had more megapixels on a larger sensor, would the joys and benefits of using a FF camera really be that noticeable in the real world?  Do people who have made the switch from APS-C to FF agree that it is the best decision that they've ever made and wish they had done it sooner?  Or after making the change, have you been left wondering what all the fuss is about?  Would appreciate your thoughts.  Thanks.

EOS Bodies / Mandatory Autofocus and Shutter Sounds
« on: September 28, 2011, 03:16:56 AM »
Hi.  I've just bought a new phone.  When using the camera, you can't turn the shutter sound off (and it beeps every few seconds to confirm that it is in focus).  Its very annoying!  After doing a bit of research, it turns out that this is on purpose.  Apparently there is legislation being debated in the US to make shutter sounds mandatory (I believe it is called the 'Camera Phone Predator Alert Act').  And some other countries have already introduced similar rules. How come nobody is discussing this?  While we all know who this legislation is aimed at, there are numerous occassions when a silent camera makes sense (plays, presentations, speeches, wedding ceremonies etc).  Plus, if you are some sort of perve, you'll just start using a P & S, anyway, and given that rules like these often expand over time, its not that hard to imagine it encompassing cameras in the future.  Maybe the reason the 5Diii seems to be getting delayed is because they are being fitted with an extra loud compulsory "beep" every time you focus the camera that you won't be able to turn off?  I'm just surprised that people from the US, being the home of rights and freedom, are proposing this.

Software & Accessories / Tablet Computers - yes or no??
« on: September 01, 2011, 04:50:13 AM »
Hi.  Does anyone use a tablet in conjunction with their photography?  I'm thinking of picking up a new laptop and am wondering if a tablet is the way to go?  I like the idea of the lighter weight and good battery life.  I do a bit of travelling and my main photography uses would be to download files from the camera or memory cards (CF & SD), to view the photos, upload some onto the internet and act as another backup storage facility.  I can do any serious processing when I get home on a computer with more grunt.  Just wondering if anyone else does this?  Do you find that the processors are fast enough?  Do Canon cameras mix well with Android and iPads?  Are there any that you would recomend?  Or would you stay clear of tablets for the time being and stay with a laptop? Thanks.   

Lenses / 400mm Lenses
« on: May 03, 2011, 03:01:10 AM »
There was a recent rumour about a canon 400mm f5.6 IS lens to be released in April.  Obviously that didn't pan out, and I suspect that there wasn't much substance to it.

As such, just wondering what the general consensus for sharp photos in the 400mm range is?  I currently use an older Sigma 400mm f/5.6 APO Macro, but it doesn't work with current DSLRs, so am looking for something new.  It will generally be used for daytime sports (mostly field hockey) and some wildlife photos, so f/5.6 is ok (as long as it is reasonably sharp wide open or at f/8).  The logical option seems to be the Canon 400mm (right price, good reputation, fast AF).  The f/2.8s and f/4's, are outside my price range.

The main alternative is the 100-400L.  The zoom adds IS, which is a big plus. Some reviews suggest that this isn't as good at the long end (where it will be used 99% of the time).  But, of course, there's often a big difference between reviews and real world experience. 

What would you choose?  Thanks in advance.

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