300mm plus Lens Club: discuss your long lenses

kevinWE · 07-14-2019, 06:04 AM - **1 Like**

Originally posted by siva.ss.kumar

Some beautiful Himalayan region birds. Most with K70+DA560mm
Sattal, Uttarakhand, India

Striated laughing thrush

The Striated Laughing Thrush is a beautiful bird. Nice captures.

Ducatigaz · 07-16-2019, 01:34 AM - **11 Likes**

K-3ii/FA*600mm F4 ED [IF]/Kirk window mount.

jcdoss · 07-16-2019, 06:25 AM - **4 Likes**

Blue Angels, day two
KC Airshow 2019
K-1 mII, M400f5.6
Last airshow shot from me, I promise.

str8talk83 · 07-16-2019, 11:55 AM

Originally posted by siva.ss.kumar

Some beautiful Himalayan region birds. Most with K70+DA560mm
Sattal, Uttarakhand, India

Striated laughing thrush

Kalij Pheasant

Chestnut bellied Nuthatch

White-throated laughing thrush

Blue-throated barbet

Stunning images! The detail and colors are really superb on these.

**marcusBMG** · 07-16-2019, 12:58 PM - **4 Likes**

I recently acquired a tamron 1.4x tc and a kenko 1.5x tc. Turns out that these are the same tc, and the teleplus 1.7x tc I already have is almost identical, just slightly different optically giving slightly (~1.5x NOT 1.7x) higher mag. These tc's have been discussed in this thread (X-post).

I have now tested these 3 tc's on my DFA 150-450mm. First priority was to see if the SD contacts worked. All passed this test in these conditions (good sunlight, tripod mounted K3) - lens auto focussed easily, full data transmision. Then I tried a far subject and a near subject to get an impression of IQ. Lens alone was at 450mm, lens + tc lens was set at 320mm (1.4x) or 300mm (teleplus).
The more I try doing this the more I find that results are a bit arbitrary, subject to random factors eg atmospherics so results are not to be taken as anything definitive, just indicative. Red outlines show the crop exported from LR3, white the 1:1 pixelpeep crop.

**WPRESTO** · 07-17-2019, 03:10 AM

FYI: Some long time back I posted some tests of long lenses with TC, including looking at the 150~450mm + DFA 1.4X @ 450mm. The results with that combination were very good, slightly more detail recorded than a deep crop of the 150~450mm @ 450mm without the 1.4X. I concluded that the combination was a reasonable way to get over 600mm with no detectable loss of IQ, in fact, possibly a slight gain compared to deeper cropping of an image taken @ 450mm.

skierd · 07-19-2019, 12:24 AM - **12 Likes**

Caribou along the Park Road, Denali National Park June 2019. Pentax KP + 55-300 PLM

Kantishna-3624 by David Dawson, on Flickr

Kantishna-3646 by David Dawson, on Flickr

Kantishna-3648 by David Dawson, on Flickr

Kantishna-3657 by David Dawson, on Flickr

Kantishna-3658 by David Dawson, on Flickr

Kantishna-3661 by David Dawson, on Flickr

**tduell** · 07-19-2019, 04:51 PM - **10 Likes**

Whistling Kite being harassed by a Raven.
K-3II, DFA 150-450, handheld. See exif for shot details.

Cheers,
Terry

**tduell** · 07-19-2019, 04:57 PM - **9 Likes**

Whistling Kite.
K3II, DFA 150-450, handheld. See exif for shot details.

Cheers,
Terry

kengoh · 07-21-2019, 01:20 AM - **10 Likes**

Originally posted by WPRESTO

The images you post set a very, very high standard for the rest of us to achieve.

Thanks WPRESTO for your kind comments, some images posted in this thread are of high standard.

Banded Kingfisher shot with K3 + Sigma 500/4.5

**alfa75ts** · 07-21-2019, 02:42 AM - **4 Likes**

Whistling Kite harassing a Raven.

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Whistling Kite.

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**steamloco76** · 07-21-2019, 04:19 AM - **10 Likes**

I put my just acquired vintage 400mm f5.6 SMC-A to the test last evening. The sun drops down a power line right-of-way cut in Indiana County, Pennsylvania. Shot handheld on a K-5iis.

Basie · 07-21-2019, 07:02 AM - **8 Likes**

Taken late in the day. With these long lenses I have had significant degradation of the picture due to atmospherics, but when it is cooler one can get shots like this impala ram looking regal

**alfa75ts** · 07-21-2019, 05:38 PM - **14 Likes**

This morning, K3, DA*300, Tamron-F 1.4 TC:

Peregrine (damn those things are fast!):

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Striated Pardalote:

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**jacamar** · 07-22-2019, 06:55 AM - **8 Likes**

Purple Martins

A bird from this area (Amherst Island in Lake Ontario) was geotagged a couple of years ago and was re-located on an island in the Amazon River.

Male

Female and nestlings/juveniles

K-3, DFA*300mm, 1.4x DA TC

07-16-2019, 12:58 PM - 4 Likes	#31430
marcusBMG Site Supporter Join Date: Nov 2012 Location: North Wales Photos: Gallery \| Albums Posts: 2,869	DFA 150-450mm with 3rd party SD contact teleconverters I recently acquired a tamron 1.4x tc and a kenko 1.5x tc. Turns out that these are the same tc, and the teleplus 1.7x tc I already have is almost identical, just slightly different optically giving slightly (~1.5x NOT 1.7x) higher mag. These tc's have been discussed in this thread (X-post). I have now tested these 3 tc's on my DFA 150-450mm. First priority was to see if the SD contacts worked. All passed this test in these conditions (good sunlight, tripod mounted K3) - lens auto focussed easily, full data transmision. Then I tried a far subject and a near subject to get an impression of IQ. Lens alone was at 450mm, lens + tc lens was set at 320mm (1.4x) or 300mm (teleplus). The more I try doing this the more I find that results are a bit arbitrary, subject to random factors eg atmospherics so results are not to be taken as anything definitive, just indicative. Red outlines show the crop exported from LR3, white the 1:1 pixelpeep crop.

07-21-2019, 02:42 AM - 4 Likes	#31436
alfa75ts Loyal Site Supporter Join Date: Jun 2009 Location: Melbourne Australia Photos: Albums Posts: 1,356	Whistling Kite harassing a Raven. Whistling Kite.

07-21-2019, 04:19 AM - 10 Likes	#31437
steamloco76 Loyal Site Supporter Join Date: Feb 2014 Location: Pennsylvania Photos: Gallery Posts: 2,710	400mm f5.6 SMC-A Sunset I put my just acquired vintage 400mm f5.6 SMC-A to the test last evening. The sun drops down a power line right-of-way cut in Indiana County, Pennsylvania. Shot handheld on a K-5iis. Attached Images

07-21-2019, 05:38 PM - 14 Likes	#31439
alfa75ts Loyal Site Supporter Join Date: Jun 2009 Location: Melbourne Australia Photos: Albums Posts: 1,356	This morning, K3, DA*300, Tamron-F 1.4 TC: Peregrine (damn those things are fast!): Striated Pardalote:

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07-14-2019, 06:04 AM - 1 Like	#31426
kevinWE Veteran Member Join Date: Aug 2017 Location: Illinois, USA Posts: 497	Originally posted by siva.ss.kumar Some beautiful Himalayan region birds. Most with K70+DA560mm Sattal, Uttarakhand, India Striated laughing thrush The Striated Laughing Thrush is a beautiful bird. Nice captures.

07-16-2019, 01:34 AM - 11 Likes	#31427
Ducatigaz Pentaxian Join Date: Feb 2010 Location: Blunsdon,Wiltshire, UK Posts: 1,504	K-3ii/FA*600mm F4 ED [IF]/Kirk window mount.

07-16-2019, 06:25 AM - 4 Likes	#31428
jcdoss Pentaxian Join Date: Nov 2012 Location: Ingelheim am Rhein, Germany Photos: Gallery \| Albums Posts: 6,769	Blue Angels, day two KC Airshow 2019 K-1 mII, M400f5.6 Last airshow shot from me, I promise.

07-16-2019, 11:55 AM	#31429
str8talk83 Veteran Member Join Date: May 2008 Location: Bluffton, SC Photos: Albums Posts: 674	Originally posted by siva.ss.kumar Some beautiful Himalayan region birds. Most with K70+DA560mm Sattal, Uttarakhand, India Striated laughing thrush Kalij Pheasant Chestnut bellied Nuthatch White-throated laughing thrush Blue-throated barbet Stunning images! The detail and colors are really superb on these.

07-17-2019, 03:10 AM	#31431
WPRESTO Loyal Site Supporter Join Date: Aug 2010 Location: Massachusetts Photos: Gallery \| Albums Posts: 59,108	FYI: Some long time back I posted some tests of long lenses with TC, including looking at the 150~450mm + DFA 1.4X @ 450mm. The results with that combination were very good, slightly more detail recorded than a deep crop of the 150~450mm @ 450mm without the 1.4X. I concluded that the combination was a reasonable way to get over 600mm with no detectable loss of IQ, in fact, possibly a slight gain compared to deeper cropping of an image taken @ 450mm.

07-19-2019, 12:24 AM - 12 Likes	#31432
skierd Veteran Member Join Date: Mar 2011 Location: Fairbanks, AK Photos: Gallery Posts: 1,472	Caribou along the Park Road, Denali National Park June 2019. Pentax KP + 55-300 PLM Kantishna-3624 by David Dawson, on Flickr Kantishna-3646 by David Dawson, on Flickr Kantishna-3648 by David Dawson, on Flickr Kantishna-3657 by David Dawson, on Flickr Kantishna-3658 by David Dawson, on Flickr Kantishna-3661 by David Dawson, on Flickr

07-21-2019, 01:20 AM - 10 Likes	#31435
kengoh Pentaxian Join Date: Oct 2010 Location: Singapore Photos: Gallery \| Albums Posts: 2,787	Originally posted by WPRESTO The images you post set a very, very high standard for the rest of us to achieve. Thanks WPRESTO for your kind comments, some images posted in this thread are of high standard. Banded Kingfisher shot with K3 + Sigma 500/4.5

07-21-2019, 07:02 AM - 8 Likes	#31438
Basie Pentaxian Join Date: Aug 2011 Location: Windhoek, Namibia Photos: Gallery Posts: 989	Taken late in the day. With these long lenses I have had significant degradation of the picture due to atmospherics, but when it is cooler one can get shots like this impala ram looking regal

07-22-2019, 06:55 AM - 8 Likes	#31440
jacamar Loyal Site Supporter Join Date: Feb 2011 Location: Toronto Photos: Albums Posts: 3,443	Purple Martins A bird from this area (Amherst Island in Lake Ontario) was geotagged a couple of years ago and was re-located on an island in the Amazon River. Male Female and nestlings/juveniles K-3, DFA*300mm, 1.4x DA TC