Archived from groups: rec.photo.digital (
More info?)
My too purchase lens list is expensive, but I'd rather save a bit over time
and get the fastest glass with IS I can get even if delays getting the
lenses
I'm ramping up my digital photo time/learning and getting a long term set of
"toys" over the next few years as I approach retirement to have good set of
toys to play with when I have more time, but when the income lowers a bit --
"JohnR66" <nospam@att.net> wrote in message
news:UUXqe.940463$w62.214909@bgtnsc05-news.ops.worldnet.att.net...
> "Steven Toney" <toneys@ibm.net> wrote in message
> news:BtXqe.3020$hK3.2874@newsread3.news.pas.earthlink.net...
>> Most photos for long lens are 3D objects not 2D -- I understand why you
>> are testing a 2D print, but it would not be the normal domain of this
>> lens and TC combo -- more the domain of fix focal length MACRO, whcih
>> canon has some very good ones that have great sharpness and do great
>> MACRO imaging with the right technique and small set of tools
>>
>> I would like to get a very good reach and touch combo for a 20D for birds
>> and an other wildlife --
>>
>>
>> "JohnR66" <nospam@att.net> wrote in message
>> news:dkXqe.940283$w62.20042@bgtnsc05-news.ops.worldnet.att.net...
>>>I reshot the test im more controlled conditions. I have more confidence
>>>in this combo now!
>>>
http/home.att.net/~jriegle/canon300.htm
>>> John
>>>
>>
>>
> I agree with what you said but the 2D test gets all parts of the image in
> the focus plane for a quick go/nogo evaluation. Shooting through lots of
> atmosphere is hard to get definitive results due to all the churning of
> the air and thermal effects bending the light, causing blurring and
> distortions. My first test was shooting through over 100 yards of air on a
> sunny day. A bit unrealistic for shooting small birds where I'd be within
> 50 feet or so.
> I need to put the combo through more field use to see how it performs. Out
> of focus rendering (Bokeh) is nearly as important as the sharpness which
> the 2D test does not show.
>
> I'll try to get shots of some birds to see if this set up is a workable
> combo. I'd like to have the 500mm f/4 lens, but that's a dream...
>
> John
>
>