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Topics - anthonyd

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Lighting / Godox AD180 / 360 rebranding
« on: November 23, 2014, 01:39:02 PM »
I am planning to buy a Godox bare bulb flash for Christmas and I know that it has been rebranded under a few different brands.  Is there any difference between them?  I don't mean the flash itself, but repairs, warranty,  anything?  I live in the US, if that makes a difference.

On a different note, does anybody know how the recycle time of the 360 at half power compares with the recycle time of the 180 in full power?

Photography Technique / DoF question
« on: October 13, 2014, 11:18:37 PM »
Sorry if this has been answered before, but I wonder if someone could explain to me how to derive the relation between DoF and f number.  Let me make the question more specific:
Say that I have determined that using a 50mm lens and f/6.3 I have enough of the picture in focus to do a family shot (let's not debate this, it's just an example).  If I move twice as far away from the family and use a 100mm lens (to achieve the same framing of the subject), can I still use f/6.3 or do I need a different setting?

Beyond a simple yes or now, can someone explain the basic optics here (as at least a quasi-math rule of thumb).  I would even be happy with a pointer to a detailed analysis.

Pricewatch Deals / B&H is awesome
« on: March 19, 2014, 01:32:17 PM »
I bought the Canon 24-70 f/2.8II last Monday from B&H for $2199.  After seeing in CR that they dropped the price by $200 this Monday I called them asking if I can get the discount as well, postmortem (my reasoning was that I could always return the lens and order it again at the new price).  The guy offered me the discount immediately without me even have to mention that I would return it otherwise!
They sure made me want to go back for my next big purchase.

Lenses / just hit the purchase button
« on: March 11, 2014, 12:00:34 AM »
I had saved money for the Sigma 35f/1.4 A, but my tax return was higher than I expected, so I just ordered the Canon 24-70f/2.8 II instead!!! Wish me luck!


Canon General / Big zoom, small size
« on: February 12, 2014, 01:52:22 AM »
Hello, I was wondering if anybody has real life experience (and photos to back it up) with a superzoom compact camera.  I was looking at the latest announcements by Sony at dpreview and could help wonder if a 24.5 - 1550mm equivalent lens that is smaller (and cheaper) than a full frame 50mm could possibly produce anything decent.

Put another way, if I were to go on a trip to Alaska, or Yellowstone tomorrow and couldn't afford a canon 600mm or bigger (let alone the trash-can size and weight) would it be worth it to grab a superzoom that has a reach of 1000+ equivalent? (not necessarily the Sony ones mentioned).

Please don't start a discussion on image stabilization, or the small sensor size and its effects on IQ. I'm well aware of all that.  I'm asking about the lens, so assume we are taking a picture of a grizzly bear, or a bird, who's standing still, on a very bright day, with the camera on a tripod.

Lighting / Fastest DIY light modifier (post yours)
« on: January 18, 2014, 11:30:52 PM »
My son was drawing tonight and I wanted to take a few pictures of him, but didn't want to bother setting up lights, so I made a ... "soft box" out of printer paper leaning against cereal boxes and put in my flashgun with a remote trigger.
Any feedback is welcome (including negative) and I hope to see other people's crazy quick and cheap solutions posted.

Lenses / Sigma 35/1.4 or ...
« on: December 26, 2013, 10:39:59 AM »
I have some money burning a hole in my pocket (under $1K) and I want to buy a new lens.
I do a lot of portrait work and landscapes and I currently have a canon 50/1.4 and 70-200 (both of which I'm very happy with) and a tamron 17-50/2.8 (which I'm ok with).  My body is APS-C so the 50 is a little too long for indoors work, or full body shots, so I'm considering of adding the Sigma 35/1.4 into the mix.  Every single review I've read praises the lens beyond reason, so I'm not concerned about the quality, I'm only wondering what other lenses people would consider in my situation.

I did consider the Sigma 18-35/1.8 for a second, but it's not FF and I might be upgrading my body next, so I don't want more crop lenses.

Canon General / Advice on pricing
« on: October 22, 2013, 03:14:45 PM »
Hello everybody.  I would describe myself as a non-professional photography enthusiast, since I have a different day job to pay the bills, but I do make some money here and there from photography (have sold a few pictures to businesses,  done a wedding, etc).  Last year I did the family Christmas card of a friend, and I did it for free, since it was fun for me and the first time I did such a thing (I know, I know, I ruined somebody's business).  It turns out they were very happy, and this year they want to pay me to do it again.  I don't really need the money, but it certainly feels good (plus it justifies new equipment), so I'm planning to charge them a reasonable price.  And here is where I need your help.  What it is "a reasonable price".  I will probably spend half a Sunday at their place planning, setting up, shooting (eating dinner) and then several hours in post. How much would you professionals charge for something like this? I live in Knoxville, TN, in case you want to take cost of living into account.

Thanks for any input,

Software & Accessories / UV filter advice
« on: July 14, 2013, 08:00:04 PM »
Hello everybody, I'm looking for a 43mm UV filter. I don't want a cheaper solution, but I don't want to waste my money either.  My problem is that a quick search on amazon gave me results from a $5.49 Tiffen and a $5.99 Polaroid to a $23 Hoya (low profile) and a $44 Zeiss. WTF? Why such variability, I was expecting 20%-50% not 8x.

Any suggestions (either which to avoid, or which to prefer) will be appreciated.

P.S. The filter is for the 22mm pancake on the EOS-M, which is my second camera, so top quality is not a must.

EOS Bodies / Canon Rebel SL1 at B&H
« on: March 21, 2013, 01:57:28 AM »
I just got an email from B&H announcing the SL1, T5i, SX280 HS and the new lens (18-55 f/3.5-5.6 IS STM)

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