jason sheridan

jason sheridan

Lives in Canada ON, Canada
Works as a Chemistry/Biology Teacher
Has a website at www.sheridanphoto.com
Joined on Aug 9, 2003

jason sheridan's recent activity

  • I wrote a fairly lengthy review over at my site for the new(ish) Tamron 150-600mm lens. I am really enjoying the lens but it does need some careful use and time to get used to it. Having a 600mm ...
  • Nice, you are going to love the 400mm!  The 400 f/5.6 will produce images just as sharp (if not more so) than the 300 f/4, especially when compared to the 300 + 1.4x converter.  Be diligent about ...
  • Thanks I really enjoy the images I get with my 300mm. It is by far my most used lens since I bought it 4 years ago. You should not need to stop down to get nice sharp results as it normally is ...
  • I find the lens works decently in low light. The slow apertures don't help but you can usually over come this with higher ISO. I try not to use the lens wide open (f/6.3) at 600mm but some times ...
  • Hey, thanks for looking.  It is nice to get feedback from a talented photographer as yourself.  I am very lucky to have come upon such co-operative animals and the light was just perfect for a ...
  • I was in the Ottawa Valley a couple of weeks ago on a family cottage trip. There were deer everywhere you turned and we must have seen over a dozen animals. Photography was not my main goal but I ...
  • These are absolutely outstanding shots, some of the best birds in flight shots as I have seen.  You should be very proud of these! Jay
  • I would have to agree with most of what has been already said. If the 300mm f/4 IS has a weekness it is not at its minimum focus distance, its near infinity. I use this lens as a macro more than ...
  • This was the first digital camera that I owned and truly loved. It took/takes amazing photos and it handles very nicely, you're going to really enjoy it. All of the photos in my galleries from ...
  • This is a nice capture of what I'm sure is a special moment.  If I had one suggestion it would be to try tweaking the white balance a bit as the skin tone and the whole image is cast very green. Jay
  • First of all this is an excellent shot of a snowy owl. If birds in flight are your primary goal then the 50D may not be the best choice if you have a larger budget. If you compare the 50D against ...
  • Shooting last week netted some first images of a couple of bird species for me. A productive day to say the least!! Adult Black Crowned Night Heron: 50D @ ISO 800, 1/160s & Tamron 150-600mm VC @ ...
  • A 50D does sell for not much at all right now (like $300-400). Heck, I bought a second one used 2 years ago for less than $400. The 60D has some image quality over the 50D at higher ISO, while the ...
  • I really like the results I get with my 2 50Ds. Having used the 20D, 40D, 7D as well as the 50D and the 50D beats all older bodies hands down. It is much better than the 40D at low ISO and the ...
  • Created user reviews Canon 70-200mm f4 IS Review
    This zoom produces the sharpest and most beautiful images of any of the 6 lenses that I own or have used (includes a several primes). Optically, the only weakness I have found is right at the ...
  • I have the lens and converter you are asking about.  There is a new review of the lens on my site.  The Canon 70-200mm f/4 IS takes a teleconverter better than any other lens I have ever used. It ...
  • The 300mm f/4 does acts like a 480mm f/6.4 only for depth of field on a 1.6x crop camera. As for shutter speed and field of view it acts more like a 480mm f/4 (close enough to a 500mm f/4). I ...
  • I totally agree on your analysis.  There is a drop in resolution when the 300 is focused to infinity.  I noted this in my review as well, but I am almost never using the lens at these focal ...
  • Thanks for taking a look, I really enjoyed putting my experiences into words. My lens is really sharp on its own and decent when combined with the 1.4x converter. I think due to the age of the lens ...
  • I was by no means comparing the 300mm f/4 with the outstanding 500mm f/4 I or II.  I was just mentioning how the field of view is similar for the 300mm when attached to 1.4x converter (480mm ...
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Total messages 129
Threads started 29
Last post 15 hours ago
Total comments 2
Total likes 4
Last post 9 months ago
Total reviews 3
Last review 15 hours ago
Entries 1
Votes cast 0
Last entry 7 months ago
Photos uploaded 16
Last upload 7 months ago