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08-14-2021, 04:55 AM - 1 Like   #36721
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QuoteOriginally posted by Des Quote
Thanks Rob. (remember Kodak's "bright cloudy day"?).
I remember it as "cloudy bright" and it is still good advice, as is "light coming over your left shoulder." BTW: When photographing specimens (fossils) the latter is required for publication because so many humans either instinctively or from training assume light is coming from the upper left and somewhat in front of the subject.

08-14-2021, 06:51 AM - 21 Likes   #36722
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Walking along the beach front and saw this on the rocks. Didn't have a care in the world.

K-1 and 150-450mm


Seal - Milford On Sea
by Michael Pursey, on Flickr


Seal - Milford On Sea
by Michael Pursey, on Flickr


Seal - Milford On Sea
by Michael Pursey, on Flickr

I even managed a little video HERE
08-14-2021, 06:52 AM - 7 Likes   #36723
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K-1, dfa 150-450.
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PENTAX K-1 Mark II  Photo 
08-14-2021, 07:25 AM   #36724
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Comparison of P-FA* 300/f 4.0 and P-FA 400.f5.6

I have both the 300/4.0 and the 400/5.6 Pentax 645 telephoto lenses. The 300 is a star (*) version and widely hailed as a great lens. However, I have achieved about the same results with the 400/5.6 on the 645D and 645Z. I notice in the Pentax Forums lens reviews that the 400mm actually rates higher than the 300mm in sharpness (9.7 as compared to 9.0 for the 300mm). Actally, I have not used either lens extensively, mostly to capture the turkey, deer, and the occasional red fox in the fields across the street from my home, not a birder. I would be quite interested to read actual user reports and comparisons of these lenses. Another thing that surprises me is how inexpensive the lenses tend to be when sold as used, as compared with fairly high prices when sold as new.

08-14-2021, 10:45 AM - 1 Like   #36725
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QuoteOriginally posted by Mike.P Quote
Walking along the beach front and saw this on the rocks. Didn't have a care in the world.
The last image - with the seal yawning - is definitely a winner.

---------- Post added 08-14-21 at 01:59 PM ----------

QuoteOriginally posted by ivanvernon Quote
I have both the 300/4.0 and the 400/5.6 Pentax 645 telephoto lenses. The 300 is a star (*) version and widely hailed as a great lens. However, I have achieved about the same results with the 400/5.6 on the 645D and 645Z. I notice in the Pentax Forums lens reviews that the 400mm actually rates higher than the 300mm in sharpness (9.7 as compared to 9.0 for the 300mm). Actally, I have not used either lens extensively, mostly to capture the turkey, deer, and the occasional red fox in the fields across the street from my home, not a birder. I would be quite interested to read actual user reports and comparisons of these lenses. Another thing that surprises me is how inexpensive the lenses tend to be when sold as used, as compared with fairly high prices when sold as new.
Not quite the response you''re looking for but; I've owned an SMCA 400mm f5.6; DA 300mm f4; Sigma 300 f4 APO; Tamron 400mm f4 and I currently own an Olympus 300mm f4. Ranking these by my perceived impression of IQ, or my "satisfaction" with images obtained by each:

1) Oly 300 f4 and Tamron 400mm f4 are the best and roughly equal

2) Pentax DA 300 f4
3) Sigma 300 f4 APO
4) Pentax 400mm f5.6 SMCA easily had the poorest IQ. I got it as a lighter, more compact alternative to the very large Tamron 400mm f4, but images with the Pentax were not good enough for me so kept the lens less than one year.

There are a lot of apples and acorns comparison here = film, FF digital, APS-C digital, and MFT digital. It is certain, however, that the Oly 300 and the Tamron 400 almost always delivered satisfactory images. Both lenses also maintained IQ when used with a 1.4X converter (Oly 1.4X or Pentax 1.4XL unit respectively)

Last edited by WPRESTO; 08-14-2021 at 11:00 AM.
08-14-2021, 02:49 PM - 8 Likes   #36726
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Muskoka is just over a couple of hours north of Toronto - not exactly wilderness but a different world nonetheless.

Meadow beauty

Meadow-beauty by
Steven, on Flickr

Herring Gull






Caspian Tern



American Crow

08-14-2021, 03:42 PM   #36727
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QuoteOriginally posted by jacamar Quote
Muskoka is just over a couple of hours north of Toronto - not exactly wilderness but a different world nonetheless.

Meadow beauty

Herring Gull

Caspian Tern

American Crow
That is one heck of a mouthful for the Gull!!!

08-14-2021, 04:27 PM   #36728
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QuoteOriginally posted by ChipB Quote
That is one heck of a mouthful for the Gull!!!
+1 on that comment. Just looking at the still image makes my throat hurt. I'll take butterflies in the stomach over a fish that isn't quite dead.
08-14-2021, 04:40 PM   #36729
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QuoteOriginally posted by WPRESTO Quote
The last image - with the seal yawning - is definitely a winner.

---------- Post added 08-14-21 at 01:59 PM ----------



Not quite the response you''re looking for but; I've owned an SMCA 400mm f5.6; DA 300mm f4; Sigma 300 f4 APO; Tamron 400mm f4 and I currently own an Olympus 300mm f4. Ranking these by my perceived impression of IQ, or my "satisfaction" with images obtained by each:

1) Oly 300 f4 and Tamron 400mm f4 are the best and roughly equal

2) Pentax DA 300 f4
3) Sigma 300 f4 APO
4) Pentax 400mm f5.6 SMCA easily had the poorest IQ. I got it as a lighter, more compact alternative to the very large Tamron 400mm f4, but images with the Pentax were not good enough for me so kept the lens less than one year.

There are a lot of apples and acorns comparison here = film, FF digital, APS-C digital, and MFT digital. It is certain, however, that the Oly 300 and the Tamron 400 almost always delivered satisfactory images. Both lenses also maintained IQ when used with a 1.4X converter (Oly 1.4X or Pentax 1.4XL unit respectively)

Hi Walt: Sorry to be a nuisance. However, I want to be sure we are referring to the same two Pentax medium format 645 lenses. The two I am referring to are.

1. SMC Pentax-FA* 645 300mm f 4.0 ED (IF)

2. Not concerned with the Sigma lens.

3. SMC Pentax-FA 645 400mm f 5.6 ED (IF)

Are these two lenses the same ones you are referring to in your No, 1 and No. 3? or are you referring to K-mount lenses?

Thanks for clarifying this for me.
08-14-2021, 06:04 PM   #36730
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QuoteOriginally posted by ivanvernon Quote
Hi Walt: Sorry to be a nuisance. However, I want to be sure we are referring to the same two Pentax medium format 645 lenses. The two I am referring to are.

1. SMC Pentax-FA* 645 300mm f 4.0 ED (IF)

2. Not concerned with the Sigma lens.

3. SMC Pentax-FA 645 400mm f 5.6 ED (IF)

Are these two lenses the same ones you are referring to in your No, 1 and No. 3? or are you referring to K-mount lenses?

Thanks for clarifying this for me.
The lenses in my experience have been 35mm FF, APS-C and MFT. What is not clear to me is whether or not the formula for the 35mm FF SMCA 400mm f5.6 Pentax and the 645 400mm f5.6 is essentially the same or significantly different. If it were the same, then from MPOV it was/is a disappointing design.
08-14-2021, 08:19 PM - 1 Like   #36731
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QuoteOriginally posted by K2 to K50 Quote
Stunning image Ken - beautiful!
QuoteOriginally posted by RobG Quote
Fabulous shot, Ken! You do amazing work with that big lens.
Thank you!
Thanks K2 to K50 and RobG.
08-14-2021, 08:20 PM - 17 Likes   #36732
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Little Spiderhunter shot with K5-IIs + Sigma 500/4.5

08-14-2021, 09:17 PM   #36733
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QuoteOriginally posted by WPRESTO Quote
The lenses in my experience have been 35mm FF, APS-C and MFT. What is not clear to me is whether or not the formula for the 35mm FF SMCA 400mm f5.6 Pentax and the 645 400mm f5.6 is essentially the same or significantly different. If it were the same, then from MPOV it was/is a disappointing design.
I must admit the same question has crossed my mind when Ive seen ads for the 645 lens. From the lens specifications here, theyre both 7 elements in 6 groups designs, with a 77mm filter, so its a fair question. Unfortunately, only the A lens optical design diagram is given. The FA* design is definitely different, even though it retains the same filter thread.
08-14-2021, 10:26 PM   #36734
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QuoteOriginally posted by WPRESTO Quote
The lenses in my experience have been 35mm FF, APS-C and MFT. What is not clear to me is whether or not the formula for the 35mm FF SMCA 400mm f5.6 Pentax and the 645 400mm f5.6 is essentially the same or significantly different. If it were the same, then from MPOV it was/is a disappointing design.
OK, yes, I understand now. The 645 400mm f 5.6 gets high reviews from Pentaxers, and my experience has also been quite positive. I am quite interested in a considered opinion by any Pentaxer who may have used both these two lens and can offer an evaluative perspective.
08-15-2021, 04:27 AM - 2 Likes   #36735
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Spring is in the Air...

Our regular guest. K3ii + Sigma 300 F2.8; Crop in lightroom.



---------- Post added 08-15-21 at 04:28 AM ----------

QuoteOriginally posted by kengoh Quote
Little Spiderhunter shot with K5-IIs + Sigma 500/4.5

Love it.
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